215570825

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 288273216

約数和(自身を除く): 72702391

約数列:

[1, 5, 25, 41, 43, 67, 73, 205, 215, 335, 365, 1025, 1075, 1675, 1763, 1825, 2747, 2881, 2993, 3139, 4891, 8815, 13735, 14405, 14965, 15695, 24455, 44075, 68675, 72025, 74825, 78475, 118121, 122275, 128699, 200531, 210313, 590605, 643495, 1002655, 1051565, 2953025, 3217475, 5013275, 5257825, 8622833, 43114165, 215570825]

約数ペア:

[(1, 215570825), (5, 43114165), (25, 8622833), (41, 5257825), (43, 5013275), (67, 3217475), (73, 2953025), (205, 1051565), (215, 1002655), (335, 643495), (365, 590605), (1025, 210313), (1075, 200531), (1675, 128699), (1763, 122275), (1825, 118121), (2747, 78475), (2881, 74825), (2993, 72025), (3139, 68675), (4891, 44075), (8815, 24455), (13735, 15695), (14405, 14965)]