64995220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{104831}}^1$

素因数の和:104871

約数の個数: 24

約数和(自身を含む): 140894208

約数和(自身を除く): 75898988

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 104831, 209662, 419324, 524155, 1048310, 2096620, 3249761, 6499522, 12999044, 16248805, 32497610, 64995220]

約数ペア:

[(1, 64995220), (2, 32497610), (4, 16248805), (5, 12999044), (10, 6499522), (20, 3249761), (31, 2096620), (62, 1048310), (124, 524155), (155, 419324), (310, 209662), (620, 104831)]