20123231438

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{63281}}^1$

素因数の和:63560

約数の個数: 32

約数和(自身を含む): 32659587072

約数和(自身を除く): 12536355634

約数列:

[1, 2, 23, 31, 46, 62, 223, 446, 713, 1426, 5129, 6913, 10258, 13826, 63281, 126562, 158999, 317998, 1455463, 1961711, 2910926, 3923422, 14111663, 28223326, 45119353, 90238706, 324568249, 437461553, 649136498, 874923106, 10061615719, 20123231438]

約数ペア:

[(1, 20123231438), (2, 10061615719), (23, 874923106), (31, 649136498), (46, 437461553), (62, 324568249), (223, 90238706), (446, 45119353), (713, 28223326), (1426, 14111663), (5129, 3923422), (6913, 2910926), (10258, 1961711), (13826, 1455463), (63281, 317998), (126562, 158999)]