478640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:237

約数の個数: 40

約数和(自身を含む): 1154688

約数和(自身を除く): 676048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 193, 248, 310, 386, 496, 620, 772, 965, 1240, 1544, 1930, 2480, 3088, 3860, 5983, 7720, 11966, 15440, 23932, 29915, 47864, 59830, 95728, 119660, 239320, 478640]

約数ペア:

[(1, 478640), (2, 239320), (4, 119660), (5, 95728), (8, 59830), (10, 47864), (16, 29915), (20, 23932), (31, 15440), (40, 11966), (62, 7720), (80, 5983), (124, 3860), (155, 3088), (193, 2480), (248, 1930), (310, 1544), (386, 1240), (496, 965), (620, 772)]