66405640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{237163}}^1$

素因数の和:237181

約数の個数: 32

約数和(自身を含む): 170758080

約数和(自身を除く): 104352440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 237163, 474326, 948652, 1185815, 1660141, 1897304, 2371630, 3320282, 4743260, 6640564, 8300705, 9486520, 13281128, 16601410, 33202820, 66405640]

約数ペア:

[(1, 66405640), (2, 33202820), (4, 16601410), (5, 13281128), (7, 9486520), (8, 8300705), (10, 6640564), (14, 4743260), (20, 3320282), (28, 2371630), (35, 1897304), (40, 1660141), (56, 1185815), (70, 948652), (140, 474326), (280, 237163)]