15391420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1627}}^1$

素因数の和:1690

約数の個数: 48

約数和(自身を含む): 36102528

約数和(自身を除く): 20711108

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1627, 1892, 2365, 3254, 4730, 6508, 8135, 9460, 16270, 17897, 32540, 35794, 69961, 71588, 89485, 139922, 178970, 279844, 349805, 357940, 699610, 769571, 1399220, 1539142, 3078284, 3847855, 7695710, 15391420]

約数ペア:

[(1, 15391420), (2, 7695710), (4, 3847855), (5, 3078284), (10, 1539142), (11, 1399220), (20, 769571), (22, 699610), (43, 357940), (44, 349805), (55, 279844), (86, 178970), (110, 139922), (172, 89485), (215, 71588), (220, 69961), (430, 35794), (473, 32540), (860, 17897), (946, 16270), (1627, 9460), (1892, 8135), (2365, 6508), (3254, 4730)]