81490840

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{877}}^1$

素因数の和:1012

約数の個数: 64

約数和(自身を含む): 193440960

約数和(自身を除く): 111950120

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 101, 115, 184, 202, 230, 404, 460, 505, 808, 877, 920, 1010, 1754, 2020, 2323, 3508, 4040, 4385, 4646, 7016, 8770, 9292, 11615, 17540, 18584, 20171, 23230, 35080, 40342, 46460, 80684, 88577, 92920, 100855, 161368, 177154, 201710, 354308, 403420, 442885, 708616, 806840, 885770, 1771540, 2037271, 3543080, 4074542, 8149084, 10186355, 16298168, 20372710, 40745420, 81490840]

約数ペア:

[(1, 81490840), (2, 40745420), (4, 20372710), (5, 16298168), (8, 10186355), (10, 8149084), (20, 4074542), (23, 3543080), (40, 2037271), (46, 1771540), (92, 885770), (101, 806840), (115, 708616), (184, 442885), (202, 403420), (230, 354308), (404, 201710), (460, 177154), (505, 161368), (808, 100855), (877, 92920), (920, 88577), (1010, 80684), (1754, 46460), (2020, 40342), (2323, 35080), (3508, 23230), (4040, 20171), (4385, 18584), (4646, 17540), (7016, 11615), (8770, 9292)]