18838725

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 33188352

約数和(自身を除く): 14349627

約数列:

[1, 3, 5, 15, 23, 25, 67, 69, 75, 115, 163, 201, 335, 345, 489, 575, 815, 1005, 1541, 1675, 1725, 2445, 3749, 4075, 4623, 5025, 7705, 10921, 11247, 12225, 18745, 23115, 32763, 38525, 54605, 56235, 93725, 115575, 163815, 251183, 273025, 281175, 753549, 819075, 1255915, 3767745, 6279575, 18838725]

約数ペア:

[(1, 18838725), (3, 6279575), (5, 3767745), (15, 1255915), (23, 819075), (25, 753549), (67, 281175), (69, 273025), (75, 251183), (115, 163815), (163, 115575), (201, 93725), (335, 56235), (345, 54605), (489, 38525), (575, 32763), (815, 23115), (1005, 18745), (1541, 12225), (1675, 11247), (1725, 10921), (2445, 7705), (3749, 5025), (4075, 4623)]