7899640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{317}}^1$

素因数の和:424

約数の個数: 64

約数和(自身を含む): 20606400

約数和(自身を除く): 12706760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 280, 317, 356, 445, 623, 634, 712, 890, 1246, 1268, 1585, 1780, 2219, 2492, 2536, 3115, 3170, 3560, 4438, 4984, 6230, 6340, 8876, 11095, 12460, 12680, 17752, 22190, 24920, 28213, 44380, 56426, 88760, 112852, 141065, 197491, 225704, 282130, 394982, 564260, 789964, 987455, 1128520, 1579928, 1974910, 3949820, 7899640]

約数ペア:

[(1, 7899640), (2, 3949820), (4, 1974910), (5, 1579928), (7, 1128520), (8, 987455), (10, 789964), (14, 564260), (20, 394982), (28, 282130), (35, 225704), (40, 197491), (56, 141065), (70, 112852), (89, 88760), (140, 56426), (178, 44380), (280, 28213), (317, 24920), (356, 22190), (445, 17752), (623, 12680), (634, 12460), (712, 11095), (890, 8876), (1246, 6340), (1268, 6230), (1585, 4984), (1780, 4438), (2219, 3560), (2492, 3170), (2536, 3115)]