42618680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1999}}^1$

素因数の和:2064

約数の個数: 64

約数和(自身を含む): 105840000

約数和(自身を除く): 63221320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 104, 130, 164, 205, 260, 328, 410, 520, 533, 820, 1066, 1640, 1999, 2132, 2665, 3998, 4264, 5330, 7996, 9995, 10660, 15992, 19990, 21320, 25987, 39980, 51974, 79960, 81959, 103948, 129935, 163918, 207896, 259870, 327836, 409795, 519740, 655672, 819590, 1039480, 1065467, 1639180, 2130934, 3278360, 4261868, 5327335, 8523736, 10654670, 21309340, 42618680]

約数ペア:

[(1, 42618680), (2, 21309340), (4, 10654670), (5, 8523736), (8, 5327335), (10, 4261868), (13, 3278360), (20, 2130934), (26, 1639180), (40, 1065467), (41, 1039480), (52, 819590), (65, 655672), (82, 519740), (104, 409795), (130, 327836), (164, 259870), (205, 207896), (260, 163918), (328, 129935), (410, 103948), (520, 81959), (533, 79960), (820, 51974), (1066, 39980), (1640, 25987), (1999, 21320), (2132, 19990), (2665, 15992), (3998, 10660), (4264, 9995), (5330, 7996)]