19452225

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 35247744

約数和(自身を除く): 15795519

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 71, 75, 195, 213, 281, 325, 355, 843, 923, 975, 1065, 1405, 1775, 2769, 3653, 4215, 4615, 5325, 7025, 10959, 13845, 18265, 19951, 21075, 23075, 54795, 59853, 69225, 91325, 99755, 259363, 273975, 299265, 498775, 778089, 1296815, 1496325, 3890445, 6484075, 19452225]

約数ペア:

[(1, 19452225), (3, 6484075), (5, 3890445), (13, 1496325), (15, 1296815), (25, 778089), (39, 498775), (65, 299265), (71, 273975), (75, 259363), (195, 99755), (213, 91325), (281, 69225), (325, 59853), (355, 54795), (843, 23075), (923, 21075), (975, 19951), (1065, 18265), (1405, 13845), (1775, 10959), (2769, 7025), (3653, 5325), (4215, 4615)]