2621320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^2$

素因数の和:166

約数の個数: 48

約数和(自身を含む): 6442380

約数和(自身を除く): 3821060

約数列:

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

約数ペア:

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