161460520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{310501}}^1$

素因数の和:310525

約数の個数: 32

約数和(自身を含む): 391232520

約数和(自身を除く): 229772000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 310501, 621002, 1242004, 1552505, 2484008, 3105010, 4036513, 6210020, 8073026, 12420040, 16146052, 20182565, 32292104, 40365130, 80730260, 161460520]

約数ペア:

[(1, 161460520), (2, 80730260), (4, 40365130), (5, 32292104), (8, 20182565), (10, 16146052), (13, 12420040), (20, 8073026), (26, 6210020), (40, 4036513), (52, 3105010), (65, 2484008), (104, 1552505), (130, 1242004), (260, 621002), (520, 310501)]