18852275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 48

約数和(自身を含む): 27498240

約数和(自身を除く): 8645965

約数列:

[1, 5, 13, 19, 25, 43, 65, 71, 95, 215, 247, 325, 355, 475, 559, 817, 923, 1075, 1235, 1349, 1775, 2795, 3053, 4085, 4615, 6175, 6745, 10621, 13975, 15265, 17537, 20425, 23075, 33725, 39689, 53105, 58007, 76325, 87685, 198445, 265525, 290035, 438425, 754091, 992225, 1450175, 3770455, 18852275]

約数ペア:

[(1, 18852275), (5, 3770455), (13, 1450175), (19, 992225), (25, 754091), (43, 438425), (65, 290035), (71, 265525), (95, 198445), (215, 87685), (247, 76325), (325, 58007), (355, 53105), (475, 39689), (559, 33725), (817, 23075), (923, 20425), (1075, 17537), (1235, 15265), (1349, 13975), (1775, 10621), (2795, 6745), (3053, 6175), (4085, 4615)]