3318640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3191}}^1$

素因数の和:3217

約数の個数: 40

約数和(自身を含む): 8311968

約数和(自身を除く): 4993328

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 3191, 6382, 12764, 15955, 25528, 31910, 41483, 51056, 63820, 82966, 127640, 165932, 207415, 255280, 331864, 414830, 663728, 829660, 1659320, 3318640]

約数ペア:

[(1, 3318640), (2, 1659320), (4, 829660), (5, 663728), (8, 414830), (10, 331864), (13, 255280), (16, 207415), (20, 165932), (26, 127640), (40, 82966), (52, 63820), (65, 51056), (80, 41483), (104, 31910), (130, 25528), (208, 15955), (260, 12764), (520, 6382), (1040, 3191)]