18312825

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{271}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 32783616

約数和(自身を除く): 14470791

約数列:

[1, 3, 5, 15, 17, 25, 51, 53, 75, 85, 159, 255, 265, 271, 425, 795, 813, 901, 1275, 1325, 1355, 2703, 3975, 4065, 4505, 4607, 6775, 13515, 13821, 14363, 20325, 22525, 23035, 43089, 67575, 69105, 71815, 115175, 215445, 244171, 345525, 359075, 732513, 1077225, 1220855, 3662565, 6104275, 18312825]

約数ペア:

[(1, 18312825), (3, 6104275), (5, 3662565), (15, 1220855), (17, 1077225), (25, 732513), (51, 359075), (53, 345525), (75, 244171), (85, 215445), (159, 115175), (255, 71815), (265, 69105), (271, 67575), (425, 43089), (795, 23035), (813, 22525), (901, 20325), (1275, 14363), (1325, 13821), (1355, 13515), (2703, 6775), (3975, 4607), (4065, 4505)]