19991437480

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{17317}}^1$

素因数の和:17392

約数の個数: 192

約数和(自身を含む): 56858457600

約数和(自身を除く): 36867020120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 31, 35, 38, 40, 49, 56, 62, 70, 76, 95, 98, 124, 133, 140, 152, 155, 190, 196, 217, 245, 248, 266, 280, 310, 380, 392, 434, 490, 532, 589, 620, 665, 760, 868, 931, 980, 1064, 1085, 1178, 1240, 1330, 1519, 1736, 1862, 1960, 2170, 2356, 2660, 2945, 3038, 3724, 4123, 4340, 4655, 4712, 5320, 5890, 6076, 7448, 7595, 8246, 8680, 9310, 11780, 12152, 15190, 16492, 17317, 18620, 20615, 23560, 28861, 30380, 32984, 34634, 37240, 41230, 57722, 60760, 69268, 82460, 86585, 115444, 121219, 138536, 144305, 164920, 173170, 230888, 242438, 288610, 329023, 346340, 484876, 536827, 577220, 606095, 658046, 692680, 848533, 969752, 1073654, 1154440, 1212190, 1316092, 1645115, 1697066, 2147308, 2303161, 2424380, 2632184, 2684135, 3290230, 3394132, 3757789, 4242665, 4294616, 4606322, 4848760, 5368270, 6580460, 6788264, 7515578, 8485330, 9212644, 10199713, 10736540, 11515805, 13160920, 15031156, 16122127, 16970660, 18425288, 18788945, 20399426, 21473080, 23031610, 26304523, 30062312, 32244254, 33941320, 37577890, 40798852, 46063220, 50998565, 52609046, 64488508, 71397991, 75155780, 80610635, 81597704, 92126440, 101997130, 105218092, 128977016, 131522615, 142795982, 150311560, 161221270, 203994260, 210436184, 263045230, 285591964, 322442540, 356989955, 407988520, 499785937, 526090460, 571183928, 644885080, 713979910, 999571874, 1052180920, 1427959820, 1999143748, 2498929685, 2855919640, 3998287496, 4997859370, 9995718740, 19991437480]

約数ペア:

[(1, 19991437480), (2, 9995718740), (4, 4997859370), (5, 3998287496), (7, 2855919640), (8, 2498929685), (10, 1999143748), (14, 1427959820), (19, 1052180920), (20, 999571874), (28, 713979910), (31, 644885080), (35, 571183928), (38, 526090460), (40, 499785937), (49, 407988520), (56, 356989955), (62, 322442540), (70, 285591964), (76, 263045230), (95, 210436184), (98, 203994260), (124, 161221270), (133, 150311560), (140, 142795982), (152, 131522615), (155, 128977016), (190, 105218092), (196, 101997130), (217, 92126440), (245, 81597704), (248, 80610635), (266, 75155780), (280, 71397991), (310, 64488508), (380, 52609046), (392, 50998565), (434, 46063220), (490, 40798852), (532, 37577890), (589, 33941320), (620, 32244254), (665, 30062312), (760, 26304523), (868, 23031610), (931, 21473080), (980, 20399426), (1064, 18788945), (1085, 18425288), (1178, 16970660), (1240, 16122127), (1330, 15031156), (1519, 13160920), (1736, 11515805), (1862, 10736540), (1960, 10199713), (2170, 9212644), (2356, 8485330), (2660, 7515578), (2945, 6788264), (3038, 6580460), (3724, 5368270), (4123, 4848760), (4340, 4606322), (4655, 4294616), (4712, 4242665), (5320, 3757789), (5890, 3394132), (6076, 3290230), (7448, 2684135), (7595, 2632184), (8246, 2424380), (8680, 2303161), (9310, 2147308), (11780, 1697066), (12152, 1645115), (15190, 1316092), (16492, 1212190), (17317, 1154440), (18620, 1073654), (20615, 969752), (23560, 848533), (28861, 692680), (30380, 658046), (32984, 606095), (34634, 577220), (37240, 536827), (41230, 484876), (57722, 346340), (60760, 329023), (69268, 288610), (82460, 242438), (86585, 230888), (115444, 173170), (121219, 164920), (138536, 144305)]