128804620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{3251}}^1$

素因数の和:3550

約数の個数: 48

約数和(自身を含む): 310318848

約数和(自身を除く): 181514228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 283, 566, 1132, 1415, 1981, 2830, 3251, 3962, 5660, 6502, 7924, 9905, 13004, 16255, 19810, 22757, 32510, 39620, 45514, 65020, 91028, 113785, 227570, 455140, 920033, 1840066, 3680132, 4600165, 6440231, 9200330, 12880462, 18400660, 25760924, 32201155, 64402310, 128804620]

約数ペア:

[(1, 128804620), (2, 64402310), (4, 32201155), (5, 25760924), (7, 18400660), (10, 12880462), (14, 9200330), (20, 6440231), (28, 4600165), (35, 3680132), (70, 1840066), (140, 920033), (283, 455140), (566, 227570), (1132, 113785), (1415, 91028), (1981, 65020), (2830, 45514), (3251, 39620), (3962, 32510), (5660, 22757), (6502, 19810), (7924, 16255), (9905, 13004)]