15861820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61007}}^1$

素因数の和:61029

約数の個数: 24

約数和(自身を含む): 35872704

約数和(自身を除く): 20010884

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 61007, 122014, 244028, 305035, 610070, 793091, 1220140, 1586182, 3172364, 3965455, 7930910, 15861820]

約数ペア:

[(1, 15861820), (2, 7930910), (4, 3965455), (5, 3172364), (10, 1586182), (13, 1220140), (20, 793091), (26, 610070), (52, 305035), (65, 244028), (130, 122014), (260, 61007)]