64131620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{5147}}^1$

素因数の和:5252

約数の個数: 48

約数和(自身を含む): 155675520

約数和(自身を除く): 91543900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1780, 2492, 3115, 5147, 6230, 10294, 12460, 20588, 25735, 36029, 51470, 72058, 102940, 144116, 180145, 360290, 458083, 720580, 916166, 1832332, 2290415, 3206581, 4580830, 6413162, 9161660, 12826324, 16032905, 32065810, 64131620]

約数ペア:

[(1, 64131620), (2, 32065810), (4, 16032905), (5, 12826324), (7, 9161660), (10, 6413162), (14, 4580830), (20, 3206581), (28, 2290415), (35, 1832332), (70, 916166), (89, 720580), (140, 458083), (178, 360290), (356, 180145), (445, 144116), (623, 102940), (890, 72058), (1246, 51470), (1780, 36029), (2492, 25735), (3115, 20588), (5147, 12460), (6230, 10294)]