660479360

素因数分解:

$2^7\times 5^1\times {\mathrm{1031999}}^1$

素因数の和:1032018

約数の個数: 32

約数和(自身を含む): 1578960000

約数和(自身を除く): 918480640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1031999, 2063998, 4127996, 5159995, 8255992, 10319990, 16511984, 20639980, 33023968, 41279960, 66047936, 82559920, 132095872, 165119840, 330239680, 660479360]

約数ペア:

[(1, 660479360), (2, 330239680), (4, 165119840), (5, 132095872), (8, 82559920), (10, 66047936), (16, 41279960), (20, 33023968), (32, 20639980), (40, 16511984), (64, 10319990), (80, 8255992), (128, 5159995), (160, 4127996), (320, 2063998), (640, 1031999)]