18808575

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 33390720

約数和(自身を除く): 14582145

約数列:

[1, 3, 5, 15, 19, 25, 57, 67, 75, 95, 197, 201, 285, 335, 475, 591, 985, 1005, 1273, 1425, 1675, 2955, 3743, 3819, 4925, 5025, 6365, 11229, 13199, 14775, 18715, 19095, 31825, 39597, 56145, 65995, 93575, 95475, 197985, 250781, 280725, 329975, 752343, 989925, 1253905, 3761715, 6269525, 18808575]

約数ペア:

[(1, 18808575), (3, 6269525), (5, 3761715), (15, 1253905), (19, 989925), (25, 752343), (57, 329975), (67, 280725), (75, 250781), (95, 197985), (197, 95475), (201, 93575), (285, 65995), (335, 56145), (475, 39597), (591, 31825), (985, 19095), (1005, 18715), (1273, 14775), (1425, 13199), (1675, 11229), (2955, 6365), (3743, 5025), (3819, 4925)]