209397720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2287}}^1$

素因数の和:2417

約数の個数: 128

約数和(自身を含む): 724838400

約数和(自身を除く): 515440680

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, 109, 120, 140, 168, 210, 218, 280, 327, 420, 436, 545, 654, 763, 840, 872, 1090, 1308, 1526, 1635, 2180, 2287, 2289, 2616, 3052, 3270, 3815, 4360, 4574, 4578, 6104, 6540, 6861, 7630, 9148, 9156, 11435, 11445, 13080, 13722, 15260, 16009, 18296, 18312, 22870, 22890, 27444, 30520, 32018, 34305, 45740, 45780, 48027, 54888, 64036, 68610, 80045, 91480, 91560, 96054, 128072, 137220, 160090, 192108, 240135, 249283, 274440, 320180, 384216, 480270, 498566, 640360, 747849, 960540, 997132, 1246415, 1495698, 1744981, 1921080, 1994264, 2492830, 2991396, 3489962, 3739245, 4985660, 5234943, 5982792, 6979924, 7478490, 8724905, 9971320, 10469886, 13959848, 14956980, 17449810, 20939772, 26174715, 29913960, 34899620, 41879544, 52349430, 69799240, 104698860, 209397720]

約数ペア:

[(1, 209397720), (2, 104698860), (3, 69799240), (4, 52349430), (5, 41879544), (6, 34899620), (7, 29913960), (8, 26174715), (10, 20939772), (12, 17449810), (14, 14956980), (15, 13959848), (20, 10469886), (21, 9971320), (24, 8724905), (28, 7478490), (30, 6979924), (35, 5982792), (40, 5234943), (42, 4985660), (56, 3739245), (60, 3489962), (70, 2991396), (84, 2492830), (105, 1994264), (109, 1921080), (120, 1744981), (140, 1495698), (168, 1246415), (210, 997132), (218, 960540), (280, 747849), (327, 640360), (420, 498566), (436, 480270), (545, 384216), (654, 320180), (763, 274440), (840, 249283), (872, 240135), (1090, 192108), (1308, 160090), (1526, 137220), (1635, 128072), (2180, 96054), (2287, 91560), (2289, 91480), (2616, 80045), (3052, 68610), (3270, 64036), (3815, 54888), (4360, 48027), (4574, 45780), (4578, 45740), (6104, 34305), (6540, 32018), (6861, 30520), (7630, 27444), (9148, 22890), (9156, 22870), (11435, 18312), (11445, 18296), (13080, 16009), (13722, 15260)]