28165125

素因数分解:

$3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:163

約数の個数: 64

約数和(自身を含む): 50918400

約数和(自身を除く): 22753275

約数列:

[1, 3, 5, 15, 19, 25, 57, 59, 67, 75, 95, 125, 177, 201, 285, 295, 335, 375, 475, 885, 1005, 1121, 1273, 1425, 1475, 1675, 2375, 3363, 3819, 3953, 4425, 5025, 5605, 6365, 7125, 7375, 8375, 11859, 16815, 19095, 19765, 22125, 25125, 28025, 31825, 59295, 75107, 84075, 95475, 98825, 140125, 159125, 225321, 296475, 375535, 420375, 477375, 494125, 1126605, 1482375, 1877675, 5633025, 9388375, 28165125]

約数ペア:

[(1, 28165125), (3, 9388375), (5, 5633025), (15, 1877675), (19, 1482375), (25, 1126605), (57, 494125), (59, 477375), (67, 420375), (75, 375535), (95, 296475), (125, 225321), (177, 159125), (201, 140125), (285, 98825), (295, 95475), (335, 84075), (375, 75107), (475, 59295), (885, 31825), (1005, 28025), (1121, 25125), (1273, 22125), (1425, 19765), (1475, 19095), (1675, 16815), (2375, 11859), (3363, 8375), (3819, 7375), (3953, 7125), (4425, 6365), (5025, 5605)]