8189880

素因数分解:

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

素因数の和:644

約数の個数: 64

約数和(自身を含む): 24796800

約数和(自身を除く): 16606920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 139, 278, 417, 491, 556, 695, 834, 982, 1112, 1390, 1473, 1668, 1964, 2085, 2455, 2780, 2946, 3336, 3928, 4170, 4910, 5560, 5892, 7365, 8340, 9820, 11784, 14730, 16680, 19640, 29460, 58920, 68249, 136498, 204747, 272996, 341245, 409494, 545992, 682490, 818988, 1023735, 1364980, 1637976, 2047470, 2729960, 4094940, 8189880]

約数ペア:

[(1, 8189880), (2, 4094940), (3, 2729960), (4, 2047470), (5, 1637976), (6, 1364980), (8, 1023735), (10, 818988), (12, 682490), (15, 545992), (20, 409494), (24, 341245), (30, 272996), (40, 204747), (60, 136498), (120, 68249), (139, 58920), (278, 29460), (417, 19640), (491, 16680), (556, 14730), (695, 11784), (834, 9820), (982, 8340), (1112, 7365), (1390, 5892), (1473, 5560), (1668, 4910), (1964, 4170), (2085, 3928), (2455, 3336), (2780, 2946)]