64120400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{5171}}^1$

素因数の和:5220

約数の個数: 60

約数和(自身を含む): 159049344

約数和(自身を除く): 94928944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 775, 1240, 1550, 2480, 3100, 5171, 6200, 10342, 12400, 20684, 25855, 41368, 51710, 82736, 103420, 129275, 160301, 206840, 258550, 320602, 413680, 517100, 641204, 801505, 1034200, 1282408, 1603010, 2068400, 2564816, 3206020, 4007525, 6412040, 8015050, 12824080, 16030100, 32060200, 64120400]

約数ペア:

[(1, 64120400), (2, 32060200), (4, 16030100), (5, 12824080), (8, 8015050), (10, 6412040), (16, 4007525), (20, 3206020), (25, 2564816), (31, 2068400), (40, 1603010), (50, 1282408), (62, 1034200), (80, 801505), (100, 641204), (124, 517100), (155, 413680), (200, 320602), (248, 258550), (310, 206840), (400, 160301), (496, 129275), (620, 103420), (775, 82736), (1240, 51710), (1550, 41368), (2480, 25855), (3100, 20684), (5171, 12400), (6200, 10342)]