639455280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{2664397}}^1$

素因数の和:2664413

約数の個数: 40

約数和(自身を含む): 1982312112

約数和(自身を除く): 1342856832

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 2664397, 5328794, 7993191, 10657588, 13321985, 15986382, 21315176, 26643970, 31972764, 39965955, 42630352, 53287940, 63945528, 79931910, 106575880, 127891056, 159863820, 213151760, 319727640, 639455280]

約数ペア:

[(1, 639455280), (2, 319727640), (3, 213151760), (4, 159863820), (5, 127891056), (6, 106575880), (8, 79931910), (10, 63945528), (12, 53287940), (15, 42630352), (16, 39965955), (20, 31972764), (24, 26643970), (30, 21315176), (40, 15986382), (48, 13321985), (60, 10657588), (80, 7993191), (120, 5328794), (240, 2664397)]