1997111760

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{1237}}^1$

素因数の和:1322

約数の個数: 240

約数和(自身を含む): 7316995968

約数和(自身を除く): 5319884208

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 35, 40, 42, 48, 56, 60, 62, 70, 80, 84, 93, 105, 112, 120, 124, 140, 155, 168, 186, 210, 217, 240, 248, 280, 310, 336, 372, 420, 434, 465, 496, 560, 620, 651, 744, 840, 868, 930, 961, 1085, 1237, 1240, 1302, 1488, 1680, 1736, 1860, 1922, 2170, 2474, 2480, 2604, 2883, 3255, 3472, 3711, 3720, 3844, 4340, 4805, 4948, 5208, 5766, 6185, 6510, 6727, 7422, 7440, 7688, 8659, 8680, 9610, 9896, 10416, 11532, 12370, 13020, 13454, 14415, 14844, 15376, 17318, 17360, 18555, 19220, 19792, 20181, 23064, 24740, 25977, 26040, 26908, 28830, 29688, 33635, 34636, 37110, 38347, 38440, 40362, 43295, 46128, 49480, 51954, 52080, 53816, 57660, 59376, 67270, 69272, 74220, 76694, 76880, 80724, 86590, 98960, 100905, 103908, 107632, 115041, 115320, 129885, 134540, 138544, 148440, 153388, 161448, 173180, 191735, 201810, 207816, 230082, 230640, 259770, 268429, 269080, 296880, 306776, 322896, 346360, 383470, 403620, 415632, 460164, 519540, 536858, 538160, 575205, 613552, 692720, 766940, 805287, 807240, 920328, 1039080, 1073716, 1150410, 1188757, 1342145, 1533880, 1610574, 1614480, 1840656, 2078160, 2147432, 2300820, 2377514, 2684290, 3067760, 3221148, 3566271, 4026435, 4294864, 4601640, 4755028, 5368580, 5943785, 6442296, 7132542, 8052870, 8321299, 9203280, 9510056, 10737160, 11887570, 12884592, 14265084, 16105740, 16642598, 17831355, 19020112, 21474320, 23775140, 24963897, 28530168, 32211480, 33285196, 35662710, 41606495, 47550280, 49927794, 57060336, 64422960, 66570392, 71325420, 83212990, 95100560, 99855588, 124819485, 133140784, 142650840, 166425980, 199711176, 249638970, 285301680, 332851960, 399422352, 499277940, 665703920, 998555880, 1997111760]

約数ペア:

[(1, 1997111760), (2, 998555880), (3, 665703920), (4, 499277940), (5, 399422352), (6, 332851960), (7, 285301680), (8, 249638970), (10, 199711176), (12, 166425980), (14, 142650840), (15, 133140784), (16, 124819485), (20, 99855588), (21, 95100560), (24, 83212990), (28, 71325420), (30, 66570392), (31, 64422960), (35, 57060336), (40, 49927794), (42, 47550280), (48, 41606495), (56, 35662710), (60, 33285196), (62, 32211480), (70, 28530168), (80, 24963897), (84, 23775140), (93, 21474320), (105, 19020112), (112, 17831355), (120, 16642598), (124, 16105740), (140, 14265084), (155, 12884592), (168, 11887570), (186, 10737160), (210, 9510056), (217, 9203280), (240, 8321299), (248, 8052870), (280, 7132542), (310, 6442296), (336, 5943785), (372, 5368580), (420, 4755028), (434, 4601640), (465, 4294864), (496, 4026435), (560, 3566271), (620, 3221148), (651, 3067760), (744, 2684290), (840, 2377514), (868, 2300820), (930, 2147432), (961, 2078160), (1085, 1840656), (1237, 1614480), (1240, 1610574), (1302, 1533880), (1488, 1342145), (1680, 1188757), (1736, 1150410), (1860, 1073716), (1922, 1039080), (2170, 920328), (2474, 807240), (2480, 805287), (2604, 766940), (2883, 692720), (3255, 613552), (3472, 575205), (3711, 538160), (3720, 536858), (3844, 519540), (4340, 460164), (4805, 415632), (4948, 403620), (5208, 383470), (5766, 346360), (6185, 322896), (6510, 306776), (6727, 296880), (7422, 269080), (7440, 268429), (7688, 259770), (8659, 230640), (8680, 230082), (9610, 207816), (9896, 201810), (10416, 191735), (11532, 173180), (12370, 161448), (13020, 153388), (13454, 148440), (14415, 138544), (14844, 134540), (15376, 129885), (17318, 115320), (17360, 115041), (18555, 107632), (19220, 103908), (19792, 100905), (20181, 98960), (23064, 86590), (24740, 80724), (25977, 76880), (26040, 76694), (26908, 74220), (28830, 69272), (29688, 67270), (33635, 59376), (34636, 57660), (37110, 53816), (38347, 52080), (38440, 51954), (40362, 49480), (43295, 46128)]