2729960

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 6199200

約数和(自身を除く): 3469240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 491, 556, 695, 982, 1112, 1390, 1964, 2455, 2780, 3928, 4910, 5560, 9820, 19640, 68249, 136498, 272996, 341245, 545992, 682490, 1364980, 2729960]

約数ペア:

[(1, 2729960), (2, 1364980), (4, 682490), (5, 545992), (8, 341245), (10, 272996), (20, 136498), (40, 68249), (139, 19640), (278, 9820), (491, 5560), (556, 4910), (695, 3928), (982, 2780), (1112, 2455), (1390, 1964)]