189904520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{365201}}^1$

素因数の和:365225

約数の個数: 32

約数和(自身を含む): 460154520

約数和(自身を除く): 270250000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 365201, 730402, 1460804, 1826005, 2921608, 3652010, 4747613, 7304020, 9495226, 14608040, 18990452, 23738065, 37980904, 47476130, 94952260, 189904520]

約数ペア:

[(1, 189904520), (2, 94952260), (4, 47476130), (5, 37980904), (8, 23738065), (10, 18990452), (13, 14608040), (20, 9495226), (26, 7304020), (40, 4747613), (52, 3652010), (65, 2921608), (104, 1826005), (130, 1460804), (260, 730402), (520, 365201)]