80042780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{571}}^1$

素因数の和:786

約数の個数: 48

約数和(自身を含む): 173357184

約数和(自身を除く): 93314404

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 163, 172, 215, 326, 430, 571, 652, 815, 860, 1142, 1630, 2284, 2855, 3260, 5710, 7009, 11420, 14018, 24553, 28036, 35045, 49106, 70090, 93073, 98212, 122765, 140180, 186146, 245530, 372292, 465365, 491060, 930730, 1861460, 4002139, 8004278, 16008556, 20010695, 40021390, 80042780]

約数ペア:

[(1, 80042780), (2, 40021390), (4, 20010695), (5, 16008556), (10, 8004278), (20, 4002139), (43, 1861460), (86, 930730), (163, 491060), (172, 465365), (215, 372292), (326, 245530), (430, 186146), (571, 140180), (652, 122765), (815, 98212), (860, 93073), (1142, 70090), (1630, 49106), (2284, 35045), (2855, 28036), (3260, 24553), (5710, 14018), (7009, 11420)]