31871620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{523}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 73418688

約数和(自身を除く): 41547068

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 277, 523, 554, 1046, 1108, 1385, 2092, 2615, 2770, 3047, 5230, 5540, 5753, 6094, 10460, 11506, 12188, 15235, 23012, 28765, 30470, 57530, 60940, 115060, 144871, 289742, 579484, 724355, 1448710, 1593581, 2897420, 3187162, 6374324, 7967905, 15935810, 31871620]

約数ペア:

[(1, 31871620), (2, 15935810), (4, 7967905), (5, 6374324), (10, 3187162), (11, 2897420), (20, 1593581), (22, 1448710), (44, 724355), (55, 579484), (110, 289742), (220, 144871), (277, 115060), (523, 60940), (554, 57530), (1046, 30470), (1108, 28765), (1385, 23012), (2092, 15235), (2615, 12188), (2770, 11506), (3047, 10460), (5230, 6094), (5540, 5753)]