20860515

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{211}}^1$

素因数の和:261

約数の個数: 48

約数和(自身を含む): 39355680

約数和(自身を除く): 18495165

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 169, 195, 211, 507, 585, 633, 845, 1055, 1521, 1899, 2197, 2535, 2743, 3165, 6591, 7605, 8229, 9495, 10985, 13715, 19773, 24687, 32955, 35659, 41145, 98865, 106977, 123435, 178295, 320931, 463567, 534885, 1390701, 1604655, 2317835, 4172103, 6953505, 20860515]

約数ペア:

[(1, 20860515), (3, 6953505), (5, 4172103), (9, 2317835), (13, 1604655), (15, 1390701), (39, 534885), (45, 463567), (65, 320931), (117, 178295), (169, 123435), (195, 106977), (211, 98865), (507, 41145), (585, 35659), (633, 32955), (845, 24687), (1055, 19773), (1521, 13715), (1899, 10985), (2197, 9495), (2535, 8229), (2743, 7605), (3165, 6591)]