78543740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21001}}^1$

素因数の和:21038

約数の個数: 48

約数和(自身を含む): 190530144

約数和(自身を除く): 111986404

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 21001, 42002, 84004, 105005, 210010, 231011, 357017, 420020, 462022, 714034, 924044, 1155055, 1428068, 1785085, 2310110, 3570170, 3927187, 4620220, 7140340, 7854374, 15708748, 19635935, 39271870, 78543740]

約数ペア:

[(1, 78543740), (2, 39271870), (4, 19635935), (5, 15708748), (10, 7854374), (11, 7140340), (17, 4620220), (20, 3927187), (22, 3570170), (34, 2310110), (44, 1785085), (55, 1428068), (68, 1155055), (85, 924044), (110, 714034), (170, 462022), (187, 420020), (220, 357017), (340, 231011), (374, 210010), (748, 105005), (935, 84004), (1870, 42002), (3740, 21001)]