78866950

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{499}}^1$

素因数の和:649

約数の個数: 48

約数和(自身を含む): 153450000

約数和(自身を除く): 74583050

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 109, 145, 218, 290, 499, 545, 725, 998, 1090, 1450, 2495, 2725, 3161, 4990, 5450, 6322, 12475, 14471, 15805, 24950, 28942, 31610, 54391, 72355, 79025, 108782, 144710, 158050, 271955, 361775, 543910, 723550, 1359775, 1577339, 2719550, 3154678, 7886695, 15773390, 39433475, 78866950]

約数ペア:

[(1, 78866950), (2, 39433475), (5, 15773390), (10, 7886695), (25, 3154678), (29, 2719550), (50, 1577339), (58, 1359775), (109, 723550), (145, 543910), (218, 361775), (290, 271955), (499, 158050), (545, 144710), (725, 108782), (998, 79025), (1090, 72355), (1450, 54391), (2495, 31610), (2725, 28942), (3161, 24950), (4990, 15805), (5450, 14471), (6322, 12475)]