20210680760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{911}}^1\times {\mathrm{29191}}^1$

素因数の和:30132

約数の個数: 64

約数和(自身を含む): 47921587200

約数和(自身を除く): 27710906440

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 911, 1822, 3644, 4555, 7288, 9110, 17309, 18220, 29191, 34618, 36440, 58382, 69236, 86545, 116764, 138472, 145955, 173090, 233528, 291910, 346180, 554629, 583820, 692360, 1109258, 1167640, 2218516, 2773145, 4437032, 5546290, 11092580, 22185160, 26593001, 53186002, 106372004, 132965005, 212744008, 265930010, 505267019, 531860020, 1010534038, 1063720040, 2021068076, 2526335095, 4042136152, 5052670190, 10105340380, 20210680760]

約数ペア:

[(1, 20210680760), (2, 10105340380), (4, 5052670190), (5, 4042136152), (8, 2526335095), (10, 2021068076), (19, 1063720040), (20, 1010534038), (38, 531860020), (40, 505267019), (76, 265930010), (95, 212744008), (152, 132965005), (190, 106372004), (380, 53186002), (760, 26593001), (911, 22185160), (1822, 11092580), (3644, 5546290), (4555, 4437032), (7288, 2773145), (9110, 2218516), (17309, 1167640), (18220, 1109258), (29191, 692360), (34618, 583820), (36440, 554629), (58382, 346180), (69236, 291910), (86545, 233528), (116764, 173090), (138472, 145955)]