20996957500

素因数分解:

$2^2\times 5^4\times {\mathrm{1013}}^1\times {\mathrm{8291}}^1$

素因数の和:9328

約数の個数: 60

約数和(自身を含む): 45967017096

約数和(自身を除く): 24970059596

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1013, 1250, 2026, 2500, 4052, 5065, 8291, 10130, 16582, 20260, 25325, 33164, 41455, 50650, 82910, 101300, 126625, 165820, 207275, 253250, 414550, 506500, 633125, 829100, 1036375, 1266250, 2072750, 2532500, 4145500, 5181875, 8398783, 10363750, 16797566, 20727500, 33595132, 41993915, 83987830, 167975660, 209969575, 419939150, 839878300, 1049847875, 2099695750, 4199391500, 5249239375, 10498478750, 20996957500]

約数ペア:

[(1, 20996957500), (2, 10498478750), (4, 5249239375), (5, 4199391500), (10, 2099695750), (20, 1049847875), (25, 839878300), (50, 419939150), (100, 209969575), (125, 167975660), (250, 83987830), (500, 41993915), (625, 33595132), (1013, 20727500), (1250, 16797566), (2026, 10363750), (2500, 8398783), (4052, 5181875), (5065, 4145500), (8291, 2532500), (10130, 2072750), (16582, 1266250), (20260, 1036375), (25325, 829100), (33164, 633125), (41455, 506500), (50650, 414550), (82910, 253250), (101300, 207275), (126625, 165820)]