20691630

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1543}}^1$

素因数の和:1705

約数の個数: 48

約数和(自身を含む): 54194400

約数和(自身を除く): 33502770

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 149, 298, 447, 745, 894, 1341, 1490, 1543, 2235, 2682, 3086, 4470, 4629, 6705, 7715, 9258, 13410, 13887, 15430, 23145, 27774, 46290, 69435, 138870, 229907, 459814, 689721, 1149535, 1379442, 2069163, 2299070, 3448605, 4138326, 6897210, 10345815, 20691630]

約数ペア:

[(1, 20691630), (2, 10345815), (3, 6897210), (5, 4138326), (6, 3448605), (9, 2299070), (10, 2069163), (15, 1379442), (18, 1149535), (30, 689721), (45, 459814), (90, 229907), (149, 138870), (298, 69435), (447, 46290), (745, 27774), (894, 23145), (1341, 15430), (1490, 13887), (1543, 13410), (2235, 9258), (2682, 7715), (3086, 6705), (4470, 4629)]