8380840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 20684160

約数和(自身を除く): 12303320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 71, 104, 130, 142, 227, 260, 284, 355, 454, 520, 568, 710, 908, 923, 1135, 1420, 1816, 1846, 2270, 2840, 2951, 3692, 4540, 4615, 5902, 7384, 9080, 9230, 11804, 14755, 16117, 18460, 23608, 29510, 32234, 36920, 59020, 64468, 80585, 118040, 128936, 161170, 209521, 322340, 419042, 644680, 838084, 1047605, 1676168, 2095210, 4190420, 8380840]

約数ペア:

[(1, 8380840), (2, 4190420), (4, 2095210), (5, 1676168), (8, 1047605), (10, 838084), (13, 644680), (20, 419042), (26, 322340), (40, 209521), (52, 161170), (65, 128936), (71, 118040), (104, 80585), (130, 64468), (142, 59020), (227, 36920), (260, 32234), (284, 29510), (355, 23608), (454, 18460), (520, 16117), (568, 14755), (710, 11804), (908, 9230), (923, 9080), (1135, 7384), (1420, 5902), (1816, 4615), (1846, 4540), (2270, 3692), (2840, 2951)]