671280975

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{613}}^1$

素因数の和:817

約数の個数: 72

約数和(自身を含む): 1251066752

約数和(自身を除く): 579785777

約数列:

[1, 3, 5, 9, 15, 25, 31, 45, 75, 93, 155, 157, 225, 279, 465, 471, 613, 775, 785, 1395, 1413, 1839, 2325, 2355, 3065, 3925, 4867, 5517, 6975, 7065, 9195, 11775, 14601, 15325, 19003, 24335, 27585, 35325, 43803, 45975, 57009, 73005, 95015, 96241, 121675, 137925, 171027, 219015, 285045, 288723, 365025, 475075, 481205, 855135, 866169, 1095075, 1425225, 1443615, 2406025, 2983471, 4275675, 4330845, 7218075, 8950413, 14917355, 21654225, 26851239, 44752065, 74586775, 134256195, 223760325, 671280975]

約数ペア:

[(1, 671280975), (3, 223760325), (5, 134256195), (9, 74586775), (15, 44752065), (25, 26851239), (31, 21654225), (45, 14917355), (75, 8950413), (93, 7218075), (155, 4330845), (157, 4275675), (225, 2983471), (279, 2406025), (465, 1443615), (471, 1425225), (613, 1095075), (775, 866169), (785, 855135), (1395, 481205), (1413, 475075), (1839, 365025), (2325, 288723), (2355, 285045), (3065, 219015), (3925, 171027), (4867, 137925), (5517, 121675), (6975, 96241), (7065, 95015), (9195, 73005), (11775, 57009), (14601, 45975), (15325, 43803), (19003, 35325), (24335, 27585)]