63219820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{211}}^2$

素因数の和:502

約数の個数: 36

約数和(自身を含む): 135272592

約数和(自身を除く): 72052772

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 211, 284, 355, 422, 710, 844, 1055, 1420, 2110, 4220, 14981, 29962, 44521, 59924, 74905, 89042, 149810, 178084, 222605, 299620, 445210, 890420, 3160991, 6321982, 12643964, 15804955, 31609910, 63219820]

約数ペア:

[(1, 63219820), (2, 31609910), (4, 15804955), (5, 12643964), (10, 6321982), (20, 3160991), (71, 890420), (142, 445210), (211, 299620), (284, 222605), (355, 178084), (422, 149810), (710, 89042), (844, 74905), (1055, 59924), (1420, 44521), (2110, 29962), (4220, 14981)]