80158780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{308303}}^1$

素因数の和:308325

約数の個数: 24

約数和(自身を含む): 181282752

約数和(自身を除く): 101123972

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 308303, 616606, 1233212, 1541515, 3083030, 4007939, 6166060, 8015878, 16031756, 20039695, 40079390, 80158780]

約数ペア:

[(1, 80158780), (2, 40079390), (4, 20039695), (5, 16031756), (10, 8015878), (13, 6166060), (20, 4007939), (26, 3083030), (52, 1541515), (65, 1233212), (130, 616606), (260, 308303)]