2177365420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{64381}}^1$

素因数の和:64498

約数の個数: 48

約数和(自身を含む): 4867279200

約数和(自身を除く): 2689913780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 890, 1691, 1780, 3382, 6764, 8455, 16910, 33820, 64381, 128762, 257524, 321905, 643810, 1223239, 1287620, 2446478, 4892956, 5729909, 6116195, 11459818, 12232390, 22919636, 24464780, 28649545, 57299090, 108868271, 114598180, 217736542, 435473084, 544341355, 1088682710, 2177365420]

約数ペア:

[(1, 2177365420), (2, 1088682710), (4, 544341355), (5, 435473084), (10, 217736542), (19, 114598180), (20, 108868271), (38, 57299090), (76, 28649545), (89, 24464780), (95, 22919636), (178, 12232390), (190, 11459818), (356, 6116195), (380, 5729909), (445, 4892956), (890, 2446478), (1691, 1287620), (1780, 1223239), (3382, 643810), (6764, 321905), (8455, 257524), (16910, 128762), (33820, 64381)]