25163860

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 54492480

約数和(自身を除く): 29328620

約数列:

[1, 2, 4, 5, 10, 20, 67, 89, 134, 178, 211, 268, 335, 356, 422, 445, 670, 844, 890, 1055, 1340, 1780, 2110, 4220, 5963, 11926, 14137, 18779, 23852, 28274, 29815, 37558, 56548, 59630, 70685, 75116, 93895, 119260, 141370, 187790, 282740, 375580, 1258193, 2516386, 5032772, 6290965, 12581930, 25163860]

約数ペア:

[(1, 25163860), (2, 12581930), (4, 6290965), (5, 5032772), (10, 2516386), (20, 1258193), (67, 375580), (89, 282740), (134, 187790), (178, 141370), (211, 119260), (268, 93895), (335, 75116), (356, 70685), (422, 59630), (445, 56548), (670, 37558), (844, 29815), (890, 28274), (1055, 23852), (1340, 18779), (1780, 14137), (2110, 11926), (4220, 5963)]