15991820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61507}}^1$

素因数の和:61529

約数の個数: 24

約数和(自身を含む): 36166704

約数和(自身を除く): 20174884

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 61507, 123014, 246028, 307535, 615070, 799591, 1230140, 1599182, 3198364, 3997955, 7995910, 15991820]

約数ペア:

[(1, 15991820), (2, 7995910), (4, 3997955), (5, 3198364), (10, 1599182), (13, 1230140), (20, 799591), (26, 615070), (52, 307535), (65, 246028), (130, 123014), (260, 61507)]