5242640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^2$

素因数の和:168

約数の個数: 60

約数和(自身を含む): 13314252

約数和(自身を除く): 8071612

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 71, 80, 104, 130, 142, 208, 260, 284, 355, 520, 568, 710, 923, 1040, 1136, 1420, 1846, 2840, 3692, 4615, 5041, 5680, 7384, 9230, 10082, 14768, 18460, 20164, 25205, 36920, 40328, 50410, 65533, 73840, 80656, 100820, 131066, 201640, 262132, 327665, 403280, 524264, 655330, 1048528, 1310660, 2621320, 5242640]

約数ペア:

[(1, 5242640), (2, 2621320), (4, 1310660), (5, 1048528), (8, 655330), (10, 524264), (13, 403280), (16, 327665), (20, 262132), (26, 201640), (40, 131066), (52, 100820), (65, 80656), (71, 73840), (80, 65533), (104, 50410), (130, 40328), (142, 36920), (208, 25205), (260, 20164), (284, 18460), (355, 14768), (520, 10082), (568, 9230), (710, 7384), (923, 5680), (1040, 5041), (1136, 4615), (1420, 3692), (1846, 2840)]