201806800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{197}}^2$

素因数の和:425

約数の個数: 90

約数和(自身を含む): 524800178

約数和(自身を除く): 322993378

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 197, 200, 208, 260, 325, 394, 400, 520, 650, 788, 985, 1040, 1300, 1576, 1970, 2561, 2600, 3152, 3940, 4925, 5122, 5200, 7880, 9850, 10244, 12805, 15760, 19700, 20488, 25610, 38809, 39400, 40976, 51220, 64025, 77618, 78800, 102440, 128050, 155236, 194045, 204880, 256100, 310472, 388090, 504517, 512200, 620944, 776180, 970225, 1009034, 1024400, 1552360, 1940450, 2018068, 2522585, 3104720, 3880900, 4036136, 5045170, 7761800, 8072272, 10090340, 12612925, 15523600, 20180680, 25225850, 40361360, 50451700, 100903400, 201806800]

約数ペア:

[(1, 201806800), (2, 100903400), (4, 50451700), (5, 40361360), (8, 25225850), (10, 20180680), (13, 15523600), (16, 12612925), (20, 10090340), (25, 8072272), (26, 7761800), (40, 5045170), (50, 4036136), (52, 3880900), (65, 3104720), (80, 2522585), (100, 2018068), (104, 1940450), (130, 1552360), (197, 1024400), (200, 1009034), (208, 970225), (260, 776180), (325, 620944), (394, 512200), (400, 504517), (520, 388090), (650, 310472), (788, 256100), (985, 204880), (1040, 194045), (1300, 155236), (1576, 128050), (1970, 102440), (2561, 78800), (2600, 77618), (3152, 64025), (3940, 51220), (4925, 40976), (5122, 39400), (5200, 38809), (7880, 25610), (9850, 20488), (10244, 19700), (12805, 15760)]