641040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{2671}}^1$

素因数の和:2687

約数の個数: 40

約数和(自身を含む): 1987968

約数和(自身を除く): 1346928

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 2671, 5342, 8013, 10684, 13355, 16026, 21368, 26710, 32052, 40065, 42736, 53420, 64104, 80130, 106840, 128208, 160260, 213680, 320520, 641040]

約数ペア:

[(1, 641040), (2, 320520), (3, 213680), (4, 160260), (5, 128208), (6, 106840), (8, 80130), (10, 64104), (12, 53420), (15, 42736), (16, 40065), (20, 32052), (24, 26710), (30, 21368), (40, 16026), (48, 13355), (60, 10684), (80, 8013), (120, 5342), (240, 2671)]