20007960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23819}}^1$

素因数の和:23840

約数の個数: 64

約数和(自身を含む): 68601600

約数和(自身を除く): 48593640

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, 120, 140, 168, 210, 280, 420, 840, 23819, 47638, 71457, 95276, 119095, 142914, 166733, 190552, 238190, 285828, 333466, 357285, 476380, 500199, 571656, 666932, 714570, 833665, 952760, 1000398, 1333864, 1429140, 1667330, 2000796, 2500995, 2858280, 3334660, 4001592, 5001990, 6669320, 10003980, 20007960]

約数ペア:

[(1, 20007960), (2, 10003980), (3, 6669320), (4, 5001990), (5, 4001592), (6, 3334660), (7, 2858280), (8, 2500995), (10, 2000796), (12, 1667330), (14, 1429140), (15, 1333864), (20, 1000398), (21, 952760), (24, 833665), (28, 714570), (30, 666932), (35, 571656), (40, 500199), (42, 476380), (56, 357285), (60, 333466), (70, 285828), (84, 238190), (105, 190552), (120, 166733), (140, 142914), (168, 119095), (210, 95276), (280, 71457), (420, 47638), (840, 23819)]