15930980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{863}}^1$

素因数の和:956

約数の個数: 48

約数和(自身を含む): 36578304

約数和(自身を除く): 20647324

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 863, 923, 1420, 1726, 1846, 3452, 3692, 4315, 4615, 8630, 9230, 11219, 17260, 18460, 22438, 44876, 56095, 61273, 112190, 122546, 224380, 245092, 306365, 612730, 796549, 1225460, 1593098, 3186196, 3982745, 7965490, 15930980]

約数ペア:

[(1, 15930980), (2, 7965490), (4, 3982745), (5, 3186196), (10, 1593098), (13, 1225460), (20, 796549), (26, 612730), (52, 306365), (65, 245092), (71, 224380), (130, 122546), (142, 112190), (260, 61273), (284, 56095), (355, 44876), (710, 22438), (863, 18460), (923, 17260), (1420, 11219), (1726, 9230), (1846, 8630), (3452, 4615), (3692, 4315)]