20664510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:329

約数の個数: 64

約数和(自身を含む): 51625728

約数和(自身を除く): 30961218

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 83, 86, 129, 166, 193, 215, 249, 258, 386, 415, 430, 498, 579, 645, 830, 965, 1158, 1245, 1290, 1930, 2490, 2895, 3569, 5790, 7138, 8299, 10707, 16019, 16598, 17845, 21414, 24897, 32038, 35690, 41495, 48057, 49794, 53535, 80095, 82990, 96114, 107070, 124485, 160190, 240285, 248970, 480570, 688817, 1377634, 2066451, 3444085, 4132902, 6888170, 10332255, 20664510]

約数ペア:

[(1, 20664510), (2, 10332255), (3, 6888170), (5, 4132902), (6, 3444085), (10, 2066451), (15, 1377634), (30, 688817), (43, 480570), (83, 248970), (86, 240285), (129, 160190), (166, 124485), (193, 107070), (215, 96114), (249, 82990), (258, 80095), (386, 53535), (415, 49794), (430, 48057), (498, 41495), (579, 35690), (645, 32038), (830, 24897), (965, 21414), (1158, 17845), (1245, 16598), (1290, 16019), (1930, 10707), (2490, 8299), (2895, 7138), (3569, 5790)]