19944536620

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{977}}^1\times {\mathrm{3881}}^1$

素因数の和:5130

約数の個数: 48

約数和(自身を含む): 42096656448

約数和(自身を除く): 22152119828

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 977, 1052, 1315, 1954, 2630, 3881, 3908, 4885, 5260, 7762, 9770, 15524, 19405, 19540, 38810, 77620, 256951, 513902, 1020703, 1027804, 1284755, 2041406, 2569510, 3791737, 4082812, 5103515, 5139020, 7583474, 10207030, 15166948, 18958685, 20414060, 37917370, 75834740, 997226831, 1994453662, 3988907324, 4986134155, 9972268310, 19944536620]

約数ペア:

[(1, 19944536620), (2, 9972268310), (4, 4986134155), (5, 3988907324), (10, 1994453662), (20, 997226831), (263, 75834740), (526, 37917370), (977, 20414060), (1052, 18958685), (1315, 15166948), (1954, 10207030), (2630, 7583474), (3881, 5139020), (3908, 5103515), (4885, 4082812), (5260, 3791737), (7762, 2569510), (9770, 2041406), (15524, 1284755), (19405, 1027804), (19540, 1020703), (38810, 513902), (77620, 256951)]