72487640

素因数分解:

$2^3\times 5^1\times {\mathrm{461}}^1\times {\mathrm{3931}}^1$

素因数の和:4403

約数の個数: 32

約数和(自身を含む): 163492560

約数和(自身を除く): 91004920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 461, 922, 1844, 2305, 3688, 3931, 4610, 7862, 9220, 15724, 18440, 19655, 31448, 39310, 78620, 157240, 1812191, 3624382, 7248764, 9060955, 14497528, 18121910, 36243820, 72487640]

約数ペア:

[(1, 72487640), (2, 36243820), (4, 18121910), (5, 14497528), (8, 9060955), (10, 7248764), (20, 3624382), (40, 1812191), (461, 157240), (922, 78620), (1844, 39310), (2305, 31448), (3688, 19655), (3931, 18440), (4610, 15724), (7862, 9220)]