2005682020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{40949}}^1$

素因数の和:41068

約数の個数: 48

約数和(自身を含む): 4402944000

約数和(自身を除く): 2397261980

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 124, 155, 158, 310, 316, 395, 620, 790, 1580, 2449, 4898, 9796, 12245, 24490, 40949, 48980, 81898, 163796, 204745, 409490, 818980, 1269419, 2538838, 3234971, 5077676, 6347095, 6469942, 12694190, 12939884, 16174855, 25388380, 32349710, 64699420, 100284101, 200568202, 401136404, 501420505, 1002841010, 2005682020]

約数ペア:

[(1, 2005682020), (2, 1002841010), (4, 501420505), (5, 401136404), (10, 200568202), (20, 100284101), (31, 64699420), (62, 32349710), (79, 25388380), (124, 16174855), (155, 12939884), (158, 12694190), (310, 6469942), (316, 6347095), (395, 5077676), (620, 3234971), (790, 2538838), (1580, 1269419), (2449, 818980), (4898, 409490), (9796, 204745), (12245, 163796), (24490, 81898), (40949, 48980)]