129315850

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{499}}^1$

素因数の和:655

約数の個数: 48

約数和(自身を含む): 247752000

約数和(自身を除く): 118436150

約数列:

[1, 2, 5, 10, 25, 50, 71, 73, 142, 146, 355, 365, 499, 710, 730, 998, 1775, 1825, 2495, 3550, 3650, 4990, 5183, 10366, 12475, 24950, 25915, 35429, 36427, 51830, 70858, 72854, 129575, 177145, 182135, 259150, 354290, 364270, 885725, 910675, 1771450, 1821350, 2586317, 5172634, 12931585, 25863170, 64657925, 129315850]

約数ペア:

[(1, 129315850), (2, 64657925), (5, 25863170), (10, 12931585), (25, 5172634), (50, 2586317), (71, 1821350), (73, 1771450), (142, 910675), (146, 885725), (355, 364270), (365, 354290), (499, 259150), (710, 182135), (730, 177145), (998, 129575), (1775, 72854), (1825, 70858), (2495, 51830), (3550, 36427), (3650, 35429), (4990, 25915), (5183, 24950), (10366, 12475)]