13030220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{571}}^1$

素因数の和:750

約数の個数: 48

約数和(自身を含む): 31519488

約数和(自身を除く): 18489268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 163, 326, 571, 652, 815, 1141, 1142, 1630, 2282, 2284, 2855, 3260, 3997, 4564, 5705, 5710, 7994, 11410, 11420, 15988, 19985, 22820, 39970, 79940, 93073, 186146, 372292, 465365, 651511, 930730, 1303022, 1861460, 2606044, 3257555, 6515110, 13030220]

約数ペア:

[(1, 13030220), (2, 6515110), (4, 3257555), (5, 2606044), (7, 1861460), (10, 1303022), (14, 930730), (20, 651511), (28, 465365), (35, 372292), (70, 186146), (140, 93073), (163, 79940), (326, 39970), (571, 22820), (652, 19985), (815, 15988), (1141, 11420), (1142, 11410), (1630, 7994), (2282, 5710), (2284, 5705), (2855, 4564), (3260, 3997)]