661665544

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{19973}}^1$

素因数の和:20121

約数の個数: 32

約数和(自身を含む): 1283529240

約数和(自身を除く): 621863696

約数列:

[1, 2, 4, 8, 41, 82, 101, 164, 202, 328, 404, 808, 4141, 8282, 16564, 19973, 33128, 39946, 79892, 159784, 818893, 1637786, 2017273, 3275572, 4034546, 6551144, 8069092, 16138184, 82708193, 165416386, 330832772, 661665544]

約数ペア:

[(1, 661665544), (2, 330832772), (4, 165416386), (8, 82708193), (41, 16138184), (82, 8069092), (101, 6551144), (164, 4034546), (202, 3275572), (328, 2017273), (404, 1637786), (808, 818893), (4141, 159784), (8282, 79892), (16564, 39946), (19973, 33128)]