28366875

素因数分解:

$3^3\times 5^4\times {\mathrm{41}}^2$

素因数の和:111

約数の個数: 60

約数和(自身を含む): 53826520

約数和(自身を除く): 25459645

約数列:

[1, 3, 5, 9, 15, 25, 27, 41, 45, 75, 123, 125, 135, 205, 225, 369, 375, 615, 625, 675, 1025, 1107, 1125, 1681, 1845, 1875, 3075, 3375, 5043, 5125, 5535, 5625, 8405, 9225, 15129, 15375, 16875, 25215, 25625, 27675, 42025, 45387, 46125, 75645, 76875, 126075, 138375, 210125, 226935, 230625, 378225, 630375, 691875, 1050625, 1134675, 1891125, 3151875, 5673375, 9455625, 28366875]

約数ペア:

[(1, 28366875), (3, 9455625), (5, 5673375), (9, 3151875), (15, 1891125), (25, 1134675), (27, 1050625), (41, 691875), (45, 630375), (75, 378225), (123, 230625), (125, 226935), (135, 210125), (205, 138375), (225, 126075), (369, 76875), (375, 75645), (615, 46125), (625, 45387), (675, 42025), (1025, 27675), (1107, 25625), (1125, 25215), (1681, 16875), (1845, 15375), (1875, 15129), (3075, 9225), (3375, 8405), (5043, 5625), (5125, 5535)]