64678640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{62191}}^1$

素因数の和:62217

約数の個数: 40

約数和(自身を含む): 161947968

約数和(自身を除く): 97269328

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 62191, 124382, 248764, 310955, 497528, 621910, 808483, 995056, 1243820, 1616966, 2487640, 3233932, 4042415, 4975280, 6467864, 8084830, 12935728, 16169660, 32339320, 64678640]

約数ペア:

[(1, 64678640), (2, 32339320), (4, 16169660), (5, 12935728), (8, 8084830), (10, 6467864), (13, 4975280), (16, 4042415), (20, 3233932), (26, 2487640), (40, 1616966), (52, 1243820), (65, 995056), (80, 808483), (104, 621910), (130, 497528), (208, 310955), (260, 248764), (520, 124382), (1040, 62191)]