18913550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{463}}^1$

素因数の和:537

約数の個数: 48

約数和(自身を含む): 37973760

約数和(自身を除く): 19060210

約数列:

[1, 2, 5, 10, 19, 25, 38, 43, 50, 86, 95, 190, 215, 430, 463, 475, 817, 926, 950, 1075, 1634, 2150, 2315, 4085, 4630, 8170, 8797, 11575, 17594, 19909, 20425, 23150, 39818, 40850, 43985, 87970, 99545, 199090, 219925, 378271, 439850, 497725, 756542, 995450, 1891355, 3782710, 9456775, 18913550]

約数ペア:

[(1, 18913550), (2, 9456775), (5, 3782710), (10, 1891355), (19, 995450), (25, 756542), (38, 497725), (43, 439850), (50, 378271), (86, 219925), (95, 199090), (190, 99545), (215, 87970), (430, 43985), (463, 40850), (475, 39818), (817, 23150), (926, 20425), (950, 19909), (1075, 17594), (1634, 11575), (2150, 8797), (2315, 8170), (4085, 4630)]