76438820

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{479}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 164505600

約数和(自身を除く): 88066780

約数列:

[1, 2, 4, 5, 10, 20, 79, 101, 158, 202, 316, 395, 404, 479, 505, 790, 958, 1010, 1580, 1916, 2020, 2395, 4790, 7979, 9580, 15958, 31916, 37841, 39895, 48379, 75682, 79790, 96758, 151364, 159580, 189205, 193516, 241895, 378410, 483790, 756820, 967580, 3821941, 7643882, 15287764, 19109705, 38219410, 76438820]

約数ペア:

[(1, 76438820), (2, 38219410), (4, 19109705), (5, 15287764), (10, 7643882), (20, 3821941), (79, 967580), (101, 756820), (158, 483790), (202, 378410), (316, 241895), (395, 193516), (404, 189205), (479, 159580), (505, 151364), (790, 96758), (958, 79790), (1010, 75682), (1580, 48379), (1916, 39895), (2020, 37841), (2395, 31916), (4790, 15958), (7979, 9580)]