20201997315

素因数分解:

$3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{241}}^1\times {\mathrm{557}}^1$

素因数の和:1012

約数の個数: 64

約数和(自身を含む): 33186447360

約数和(自身を除く): 12984450045

約数列:

[1, 3, 5, 15, 79, 127, 237, 241, 381, 395, 557, 635, 723, 1185, 1205, 1671, 1905, 2785, 3615, 8355, 10033, 19039, 30099, 30607, 44003, 50165, 57117, 70739, 91821, 95195, 132009, 134237, 150495, 153035, 212217, 220015, 285585, 353695, 402711, 459105, 660045, 671185, 1061085, 2013555, 2417953, 5588381, 7253859, 10604723, 12089765, 16765143, 17048099, 27941905, 31814169, 36269295, 51144297, 53023615, 83825715, 85240495, 159070845, 255721485, 1346799821, 4040399463, 6733999105, 20201997315]

約数ペア:

[(1, 20201997315), (3, 6733999105), (5, 4040399463), (15, 1346799821), (79, 255721485), (127, 159070845), (237, 85240495), (241, 83825715), (381, 53023615), (395, 51144297), (557, 36269295), (635, 31814169), (723, 27941905), (1185, 17048099), (1205, 16765143), (1671, 12089765), (1905, 10604723), (2785, 7253859), (3615, 5588381), (8355, 2417953), (10033, 2013555), (19039, 1061085), (30099, 671185), (30607, 660045), (44003, 459105), (50165, 402711), (57117, 353695), (70739, 285585), (91821, 220015), (95195, 212217), (132009, 153035), (134237, 150495)]