1245223820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{887}}^1\times {\mathrm{4129}}^1$

素因数の和:5042

約数の個数: 48

約数和(自身を含む): 2772584640

約数和(自身を除く): 1527360820

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 887, 1774, 3548, 4129, 4435, 8258, 8870, 15079, 16516, 17740, 20645, 30158, 41290, 60316, 70193, 75395, 82580, 140386, 150790, 280772, 301580, 350965, 701930, 1403860, 3662423, 7324846, 14649692, 18312115, 36624230, 62261191, 73248460, 124522382, 249044764, 311305955, 622611910, 1245223820]

約数ペア:

[(1, 1245223820), (2, 622611910), (4, 311305955), (5, 249044764), (10, 124522382), (17, 73248460), (20, 62261191), (34, 36624230), (68, 18312115), (85, 14649692), (170, 7324846), (340, 3662423), (887, 1403860), (1774, 701930), (3548, 350965), (4129, 301580), (4435, 280772), (8258, 150790), (8870, 140386), (15079, 82580), (16516, 75395), (17740, 70193), (20645, 60316), (30158, 41290)]