20199385450

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{21499}}^1$

素因数の和:21596

約数の個数: 96

約数和(自身を含む): 42229440000

約数和(自身を除く): 22030054550

約数列:

[1, 2, 5, 10, 19, 23, 25, 38, 43, 46, 50, 86, 95, 115, 190, 215, 230, 430, 437, 475, 575, 817, 874, 950, 989, 1075, 1150, 1634, 1978, 2150, 2185, 4085, 4370, 4945, 8170, 9890, 10925, 18791, 20425, 21499, 21850, 24725, 37582, 40850, 42998, 49450, 93955, 107495, 187910, 214990, 408481, 469775, 494477, 537475, 816962, 924457, 939550, 988954, 1074950, 1848914, 2042405, 2472385, 4084810, 4622285, 4944770, 9244570, 9395063, 10212025, 12361925, 17564683, 18790126, 20424050, 21262511, 23111425, 24723850, 35129366, 42525022, 46222850, 46975315, 87823415, 93950630, 106312555, 175646830, 212625110, 234876575, 403987709, 439117075, 469753150, 531562775, 807975418, 878234150, 1063125550, 2019938545, 4039877090, 10099692725, 20199385450]

約数ペア:

[(1, 20199385450), (2, 10099692725), (5, 4039877090), (10, 2019938545), (19, 1063125550), (23, 878234150), (25, 807975418), (38, 531562775), (43, 469753150), (46, 439117075), (50, 403987709), (86, 234876575), (95, 212625110), (115, 175646830), (190, 106312555), (215, 93950630), (230, 87823415), (430, 46975315), (437, 46222850), (475, 42525022), (575, 35129366), (817, 24723850), (874, 23111425), (950, 21262511), (989, 20424050), (1075, 18790126), (1150, 17564683), (1634, 12361925), (1978, 10212025), (2150, 9395063), (2185, 9244570), (4085, 4944770), (4370, 4622285), (4945, 4084810), (8170, 2472385), (9890, 2042405), (10925, 1848914), (18791, 1074950), (20425, 988954), (21499, 939550), (21850, 924457), (24725, 816962), (37582, 537475), (40850, 494477), (42998, 469775), (49450, 408481), (93955, 214990), (107495, 187910)]