18189860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1627}}^1$

素因数の和:1692

約数の個数: 48

約数和(自身を含む): 42119616

約数和(自身を除く): 23929756

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 1627, 2236, 2795, 3254, 5590, 6508, 8135, 11180, 16270, 21151, 32540, 42302, 69961, 84604, 105755, 139922, 211510, 279844, 349805, 423020, 699610, 909493, 1399220, 1818986, 3637972, 4547465, 9094930, 18189860]

約数ペア:

[(1, 18189860), (2, 9094930), (4, 4547465), (5, 3637972), (10, 1818986), (13, 1399220), (20, 909493), (26, 699610), (43, 423020), (52, 349805), (65, 279844), (86, 211510), (130, 139922), (172, 105755), (215, 84604), (260, 69961), (430, 42302), (559, 32540), (860, 21151), (1118, 16270), (1627, 11180), (2236, 8135), (2795, 6508), (3254, 5590)]