15721719720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1\times {\mathrm{829}}^1$

素因数の和:1168

約数の個数: 256

約数和(自身を含む): 54730598400

約数和(自身を除く): 39008878680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 107, 120, 140, 168, 210, 211, 214, 280, 321, 420, 422, 428, 535, 633, 642, 749, 829, 840, 844, 856, 1055, 1070, 1266, 1284, 1477, 1498, 1605, 1658, 1688, 2110, 2140, 2247, 2487, 2532, 2568, 2954, 2996, 3165, 3210, 3316, 3745, 4145, 4220, 4280, 4431, 4494, 4974, 5064, 5803, 5908, 5992, 6330, 6420, 6632, 7385, 7490, 8290, 8440, 8862, 8988, 9948, 11235, 11606, 11816, 12435, 12660, 12840, 14770, 14980, 16580, 17409, 17724, 17976, 19896, 22155, 22470, 22577, 23212, 24870, 25320, 29015, 29540, 29960, 33160, 34818, 35448, 44310, 44940, 45154, 46424, 49740, 58030, 59080, 67731, 69636, 87045, 88620, 88703, 89880, 90308, 99480, 112885, 116060, 135462, 139272, 158039, 174090, 174919, 177240, 177406, 180616, 225770, 232120, 266109, 270924, 316078, 338655, 348180, 349838, 354812, 443515, 451540, 474117, 524757, 532218, 541848, 620921, 632156, 677310, 696360, 699676, 709624, 790195, 874595, 887030, 903080, 948234, 1049514, 1064436, 1224433, 1241842, 1264312, 1330545, 1354620, 1399352, 1580390, 1749190, 1774060, 1862763, 1896468, 2099028, 2128872, 2370585, 2448866, 2483684, 2623785, 2661090, 2709240, 3104605, 3160780, 3498380, 3548120, 3673299, 3725526, 3792936, 4198056, 4741170, 4897732, 4967368, 5247570, 5322180, 6122165, 6209210, 6321560, 6996760, 7346598, 7451052, 9313815, 9482340, 9795464, 10495140, 10644360, 12244330, 12418420, 14693196, 14902104, 18366495, 18627630, 18716333, 18964680, 20990280, 24488660, 24836840, 29386392, 36732990, 37255260, 37432666, 48977320, 56148999, 73465980, 74510520, 74865332, 93581665, 112297998, 131014331, 146931960, 149730664, 187163330, 224595996, 262028662, 280744995, 374326660, 393042993, 449191992, 524057324, 561489990, 655071655, 748653320, 786085986, 1048114648, 1122979980, 1310143310, 1572171972, 1965214965, 2245959960, 2620286620, 3144343944, 3930429930, 5240573240, 7860859860, 15721719720]

約数ペア:

[(1, 15721719720), (2, 7860859860), (3, 5240573240), (4, 3930429930), (5, 3144343944), (6, 2620286620), (7, 2245959960), (8, 1965214965), (10, 1572171972), (12, 1310143310), (14, 1122979980), (15, 1048114648), (20, 786085986), (21, 748653320), (24, 655071655), (28, 561489990), (30, 524057324), (35, 449191992), (40, 393042993), (42, 374326660), (56, 280744995), (60, 262028662), (70, 224595996), (84, 187163330), (105, 149730664), (107, 146931960), (120, 131014331), (140, 112297998), (168, 93581665), (210, 74865332), (211, 74510520), (214, 73465980), (280, 56148999), (321, 48977320), (420, 37432666), (422, 37255260), (428, 36732990), (535, 29386392), (633, 24836840), (642, 24488660), (749, 20990280), (829, 18964680), (840, 18716333), (844, 18627630), (856, 18366495), (1055, 14902104), (1070, 14693196), (1266, 12418420), (1284, 12244330), (1477, 10644360), (1498, 10495140), (1605, 9795464), (1658, 9482340), (1688, 9313815), (2110, 7451052), (2140, 7346598), (2247, 6996760), (2487, 6321560), (2532, 6209210), (2568, 6122165), (2954, 5322180), (2996, 5247570), (3165, 4967368), (3210, 4897732), (3316, 4741170), (3745, 4198056), (4145, 3792936), (4220, 3725526), (4280, 3673299), (4431, 3548120), (4494, 3498380), (4974, 3160780), (5064, 3104605), (5803, 2709240), (5908, 2661090), (5992, 2623785), (6330, 2483684), (6420, 2448866), (6632, 2370585), (7385, 2128872), (7490, 2099028), (8290, 1896468), (8440, 1862763), (8862, 1774060), (8988, 1749190), (9948, 1580390), (11235, 1399352), (11606, 1354620), (11816, 1330545), (12435, 1264312), (12660, 1241842), (12840, 1224433), (14770, 1064436), (14980, 1049514), (16580, 948234), (17409, 903080), (17724, 887030), (17976, 874595), (19896, 790195), (22155, 709624), (22470, 699676), (22577, 696360), (23212, 677310), (24870, 632156), (25320, 620921), (29015, 541848), (29540, 532218), (29960, 524757), (33160, 474117), (34818, 451540), (35448, 443515), (44310, 354812), (44940, 349838), (45154, 348180), (46424, 338655), (49740, 316078), (58030, 270924), (59080, 266109), (67731, 232120), (69636, 225770), (87045, 180616), (88620, 177406), (88703, 177240), (89880, 174919), (90308, 174090), (99480, 158039), (112885, 139272), (116060, 135462)]