80072120

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{12281}}^1$

素因数の和:12455

約数の個数: 32

約数和(自身を含む): 181282320

約数和(自身を除く): 101210200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 12281, 24562, 49124, 61405, 98248, 122810, 245620, 491240, 2001803, 4003606, 8007212, 10009015, 16014424, 20018030, 40036060, 80072120]

約数ペア:

[(1, 80072120), (2, 40036060), (4, 20018030), (5, 16014424), (8, 10009015), (10, 8007212), (20, 4003606), (40, 2001803), (163, 491240), (326, 245620), (652, 122810), (815, 98248), (1304, 61405), (1630, 49124), (3260, 24562), (6520, 12281)]