2838225

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:138

約数の個数: 48

約数和(自身を含む): 5249664

約数和(自身を除く): 2411439

約数列:

[1, 3, 5, 13, 15, 25, 39, 41, 65, 71, 75, 123, 195, 205, 213, 325, 355, 533, 615, 923, 975, 1025, 1065, 1599, 1775, 2665, 2769, 2911, 3075, 4615, 5325, 7995, 8733, 13325, 13845, 14555, 23075, 37843, 39975, 43665, 69225, 72775, 113529, 189215, 218325, 567645, 946075, 2838225]

約数ペア:

[(1, 2838225), (3, 946075), (5, 567645), (13, 218325), (15, 189215), (25, 113529), (39, 72775), (41, 69225), (65, 43665), (71, 39975), (75, 37843), (123, 23075), (195, 14555), (205, 13845), (213, 13325), (325, 8733), (355, 7995), (533, 5325), (615, 4615), (923, 3075), (975, 2911), (1025, 2769), (1065, 2665), (1599, 1775)]