40428050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^2$

素因数の和:144

約数の個数: 72

約数和(自身を含む): 85247148

約数和(自身を除く): 44819098

約数列:

[1, 2, 5, 10, 13, 25, 26, 37, 41, 50, 65, 74, 82, 130, 185, 205, 325, 370, 410, 481, 533, 650, 925, 962, 1025, 1066, 1517, 1681, 1850, 2050, 2405, 2665, 3034, 3362, 4810, 5330, 7585, 8405, 12025, 13325, 15170, 16810, 19721, 21853, 24050, 26650, 37925, 39442, 42025, 43706, 62197, 75850, 84050, 98605, 109265, 124394, 197210, 218530, 310985, 493025, 546325, 621970, 808561, 986050, 1092650, 1554925, 1617122, 3109850, 4042805, 8085610, 20214025, 40428050]

約数ペア:

[(1, 40428050), (2, 20214025), (5, 8085610), (10, 4042805), (13, 3109850), (25, 1617122), (26, 1554925), (37, 1092650), (41, 986050), (50, 808561), (65, 621970), (74, 546325), (82, 493025), (130, 310985), (185, 218530), (205, 197210), (325, 124394), (370, 109265), (410, 98605), (481, 84050), (533, 75850), (650, 62197), (925, 43706), (962, 42025), (1025, 39442), (1066, 37925), (1517, 26650), (1681, 24050), (1850, 21853), (2050, 19721), (2405, 16810), (2665, 15170), (3034, 13325), (3362, 12025), (4810, 8405), (5330, 7585)]