3245840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3121}}^1$

素因数の和:3147

約数の個数: 40

約数和(自身を含む): 8129688

約数和(自身を除く): 4883848

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 3121, 6242, 12484, 15605, 24968, 31210, 40573, 49936, 62420, 81146, 124840, 162292, 202865, 249680, 324584, 405730, 649168, 811460, 1622920, 3245840]

約数ペア:

[(1, 3245840), (2, 1622920), (4, 811460), (5, 649168), (8, 405730), (10, 324584), (13, 249680), (16, 202865), (20, 162292), (26, 124840), (40, 81146), (52, 62420), (65, 49936), (80, 40573), (104, 31210), (130, 24968), (208, 15605), (260, 12484), (520, 6242), (1040, 3121)]