399120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1663}}^1$

素因数の和:1679

約数の個数: 40

約数和(自身を含む): 1238016

約数和(自身を除く): 838896

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1663, 3326, 4989, 6652, 8315, 9978, 13304, 16630, 19956, 24945, 26608, 33260, 39912, 49890, 66520, 79824, 99780, 133040, 199560, 399120]

約数ペア:

[(1, 399120), (2, 199560), (3, 133040), (4, 99780), (5, 79824), (6, 66520), (8, 49890), (10, 39912), (12, 33260), (15, 26608), (16, 24945), (20, 19956), (24, 16630), (30, 13304), (40, 9978), (48, 8315), (60, 6652), (80, 4989), (120, 3326), (240, 1663)]