640541858

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{17341}}^1$

素因数の和:17450

約数の個数: 32

約数和(自身を含む): 1108778112

約数和(自身を除く): 468236254

約数列:

[1, 2, 11, 22, 23, 46, 73, 146, 253, 506, 803, 1606, 1679, 3358, 17341, 18469, 34682, 36938, 190751, 381502, 398843, 797686, 1265893, 2531786, 4387273, 8774546, 13924823, 27849646, 29115539, 58231078, 320270929, 640541858]

約数ペア:

[(1, 640541858), (2, 320270929), (11, 58231078), (22, 29115539), (23, 27849646), (46, 13924823), (73, 8774546), (146, 4387273), (253, 2531786), (506, 1265893), (803, 797686), (1606, 398843), (1679, 381502), (3358, 190751), (17341, 36938), (18469, 34682)]