639930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1$

素因数の和:350

約数の個数: 32

約数和(自身を含む): 1560384

約数和(自身を除く): 920454

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 83, 166, 249, 257, 415, 498, 514, 771, 830, 1245, 1285, 1542, 2490, 2570, 3855, 7710, 21331, 42662, 63993, 106655, 127986, 213310, 319965, 639930]

約数ペア:

[(1, 639930), (2, 319965), (3, 213310), (5, 127986), (6, 106655), (10, 63993), (15, 42662), (30, 21331), (83, 7710), (166, 3855), (249, 2570), (257, 2490), (415, 1542), (498, 1285), (514, 1245), (771, 830)]