20782116770

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{328883}}^1$

素因数の和:329050

約数の個数: 32

約数和(自身を含む): 38361029760

約数和(自身を除く): 17578912990

約数列:

[1, 2, 5, 10, 71, 89, 142, 178, 355, 445, 710, 890, 6319, 12638, 31595, 63190, 328883, 657766, 1644415, 3288830, 23350693, 29270587, 46701386, 58541174, 116753465, 146352935, 233506930, 292705870, 2078211677, 4156423354, 10391058385, 20782116770]

約数ペア:

[(1, 20782116770), (2, 10391058385), (5, 4156423354), (10, 2078211677), (71, 292705870), (89, 233506930), (142, 146352935), (178, 116753465), (355, 58541174), (445, 46701386), (710, 29270587), (890, 23350693), (6319, 3288830), (12638, 1644415), (31595, 657766), (63190, 328883)]