15428440

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2131}}^1$

素因数の和:2323

約数の個数: 32

約数和(自身を含む): 34922160

約数和(自身を除く): 19493720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 2131, 3620, 4262, 7240, 8524, 10655, 17048, 21310, 42620, 85240, 385711, 771422, 1542844, 1928555, 3085688, 3857110, 7714220, 15428440]

約数ペア:

[(1, 15428440), (2, 7714220), (4, 3857110), (5, 3085688), (8, 1928555), (10, 1542844), (20, 771422), (40, 385711), (181, 85240), (362, 42620), (724, 21310), (905, 17048), (1448, 10655), (1810, 8524), (2131, 7240), (3620, 4262)]