18928275

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{359}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 33926400

約数和(自身を除く): 14998125

約数列:

[1, 3, 5, 15, 19, 25, 37, 57, 75, 95, 111, 185, 285, 359, 475, 555, 703, 925, 1077, 1425, 1795, 2109, 2775, 3515, 5385, 6821, 8975, 10545, 13283, 17575, 20463, 26925, 34105, 39849, 52725, 66415, 102315, 170525, 199245, 252377, 332075, 511575, 757131, 996225, 1261885, 3785655, 6309425, 18928275]

約数ペア:

[(1, 18928275), (3, 6309425), (5, 3785655), (15, 1261885), (19, 996225), (25, 757131), (37, 511575), (57, 332075), (75, 252377), (95, 199245), (111, 170525), (185, 102315), (285, 66415), (359, 52725), (475, 39849), (555, 34105), (703, 26925), (925, 20463), (1077, 17575), (1425, 13283), (1795, 10545), (2109, 8975), (2775, 6821), (3515, 5385)]