20495502084

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^2\times {\mathrm{1367}}^1\times {\mathrm{3461}}^1$

素因数の和:4873

約数の個数: 72

約数和(自身を含む): 50523818688

約数和(自身を除く): 30028316604

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228, 361, 722, 1083, 1367, 1444, 2166, 2734, 3461, 4101, 4332, 5468, 6922, 8202, 10383, 13844, 16404, 20766, 25973, 41532, 51946, 65759, 77919, 103892, 131518, 155838, 197277, 263036, 311676, 394554, 493487, 789108, 986974, 1249421, 1480461, 1973948, 2498842, 2960922, 3748263, 4731187, 4997684, 5921844, 7496526, 9462374, 14193561, 14993052, 18924748, 28387122, 56774244, 89892553, 179785106, 269677659, 359570212, 539355318, 1078710636, 1707958507, 3415917014, 5123875521, 6831834028, 10247751042, 20495502084]

約数ペア:

[(1, 20495502084), (2, 10247751042), (3, 6831834028), (4, 5123875521), (6, 3415917014), (12, 1707958507), (19, 1078710636), (38, 539355318), (57, 359570212), (76, 269677659), (114, 179785106), (228, 89892553), (361, 56774244), (722, 28387122), (1083, 18924748), (1367, 14993052), (1444, 14193561), (2166, 9462374), (2734, 7496526), (3461, 5921844), (4101, 4997684), (4332, 4731187), (5468, 3748263), (6922, 2960922), (8202, 2498842), (10383, 1973948), (13844, 1480461), (16404, 1249421), (20766, 986974), (25973, 789108), (41532, 493487), (51946, 394554), (65759, 311676), (77919, 263036), (103892, 197277), (131518, 155838)]