405375

素因数分解:

$3^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:88

約数の個数: 32

約数和(自身を含む): 718848

約数和(自身を除く): 313473

約数列:

[1, 3, 5, 15, 23, 25, 47, 69, 75, 115, 125, 141, 235, 345, 375, 575, 705, 1081, 1175, 1725, 2875, 3243, 3525, 5405, 5875, 8625, 16215, 17625, 27025, 81075, 135125, 405375]

約数ペア:

[(1, 405375), (3, 135125), (5, 81075), (15, 27025), (23, 17625), (25, 16215), (47, 8625), (69, 5875), (75, 5405), (115, 3525), (125, 3243), (141, 2875), (235, 1725), (345, 1175), (375, 1081), (575, 705)]