71451640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{439}}^1$

素因数の和:776

約数の個数: 64

約数和(自身を含む): 174081600

約数和(自身を除く): 102629960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 313, 439, 520, 626, 878, 1252, 1565, 1756, 2195, 2504, 3130, 3512, 4069, 4390, 5707, 6260, 8138, 8780, 11414, 12520, 16276, 17560, 20345, 22828, 28535, 32552, 40690, 45656, 57070, 81380, 114140, 137407, 162760, 228280, 274814, 549628, 687035, 1099256, 1374070, 1786291, 2748140, 3572582, 5496280, 7145164, 8931455, 14290328, 17862910, 35725820, 71451640]

約数ペア:

[(1, 71451640), (2, 35725820), (4, 17862910), (5, 14290328), (8, 8931455), (10, 7145164), (13, 5496280), (20, 3572582), (26, 2748140), (40, 1786291), (52, 1374070), (65, 1099256), (104, 687035), (130, 549628), (260, 274814), (313, 228280), (439, 162760), (520, 137407), (626, 114140), (878, 81380), (1252, 57070), (1565, 45656), (1756, 40690), (2195, 32552), (2504, 28535), (3130, 22828), (3512, 20345), (4069, 17560), (4390, 16276), (5707, 12520), (6260, 11414), (8138, 8780)]