201651320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{387791}}^1$

素因数の和:387815

約数の個数: 32

約数和(自身を含む): 488617920

約数和(自身を除く): 286966600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 387791, 775582, 1551164, 1938955, 3102328, 3877910, 5041283, 7755820, 10082566, 15511640, 20165132, 25206415, 40330264, 50412830, 100825660, 201651320]

約数ペア:

[(1, 201651320), (2, 100825660), (4, 50412830), (5, 40330264), (8, 25206415), (10, 20165132), (13, 15511640), (20, 10082566), (26, 7755820), (40, 5041283), (52, 3877910), (65, 3102328), (104, 1938955), (130, 1551164), (260, 775582), (520, 387791)]