420404545

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 606735360

約数和(自身を除く): 186330815

約数列:

[1, 5, 11, 19, 37, 55, 83, 95, 131, 185, 209, 407, 415, 655, 703, 913, 1045, 1441, 1577, 2035, 2489, 3071, 3515, 4565, 4847, 7205, 7733, 7885, 10873, 12445, 15355, 17347, 24235, 27379, 33781, 38665, 53317, 54365, 58349, 86735, 92093, 119603, 136895, 168905, 206587, 266585, 291745, 402301, 460465, 598015, 641839, 1013023, 1032935, 2011505, 2272457, 3209195, 4425311, 5065115, 7643719, 11362285, 22126555, 38218595, 84080909, 420404545]

約数ペア:

[(1, 420404545), (5, 84080909), (11, 38218595), (19, 22126555), (37, 11362285), (55, 7643719), (83, 5065115), (95, 4425311), (131, 3209195), (185, 2272457), (209, 2011505), (407, 1032935), (415, 1013023), (655, 641839), (703, 598015), (913, 460465), (1045, 402301), (1441, 291745), (1577, 266585), (2035, 206587), (2489, 168905), (3071, 136895), (3515, 119603), (4565, 92093), (4847, 86735), (7205, 58349), (7733, 54365), (7885, 53317), (10873, 38665), (12445, 33781), (15355, 27379), (17347, 24235)]