28369540725

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{420757}}^1$

素因数の和:420830

約数の個数: 48

約数和(自身を含む): 50087032320

約数和(自身を除く): 21717491595

約数列:

[1, 3, 5, 15, 25, 29, 31, 75, 87, 93, 145, 155, 435, 465, 725, 775, 899, 2175, 2325, 2697, 4495, 13485, 22475, 67425, 420757, 1262271, 2103785, 6311355, 10518925, 12201953, 13043467, 31556775, 36605859, 39130401, 61009765, 65217335, 183029295, 195652005, 305048825, 326086675, 378260543, 915146475, 978260025, 1134781629, 1891302715, 5673908145, 9456513575, 28369540725]

約数ペア:

[(1, 28369540725), (3, 9456513575), (5, 5673908145), (15, 1891302715), (25, 1134781629), (29, 978260025), (31, 915146475), (75, 378260543), (87, 326086675), (93, 305048825), (145, 195652005), (155, 183029295), (435, 65217335), (465, 61009765), (725, 39130401), (775, 36605859), (899, 31556775), (2175, 13043467), (2325, 12201953), (2697, 10518925), (4495, 6311355), (13485, 2103785), (22475, 1262271), (67425, 420757)]