72447217

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 85155840

約数和(自身を除く): 12708623

約数列:

[1, 17, 23, 31, 43, 139, 391, 527, 713, 731, 989, 1333, 2363, 3197, 4309, 5977, 12121, 16813, 22661, 30659, 54349, 73253, 99107, 101609, 137471, 185287, 521203, 1684819, 2337007, 3149879, 4261601, 72447217]

約数ペア:

[(1, 72447217), (17, 4261601), (23, 3149879), (31, 2337007), (43, 1684819), (139, 521203), (391, 185287), (527, 137471), (713, 101609), (731, 99107), (989, 73253), (1333, 54349), (2363, 30659), (3197, 22661), (4309, 16813), (5977, 12121)]