28921060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{1237}}^1$

素因数の和:1420

約数の個数: 48

約数和(自身を含む): 69882624

約数和(自身を除く): 40961564

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 167, 334, 668, 835, 1169, 1237, 1670, 2338, 2474, 3340, 4676, 4948, 5845, 6185, 8659, 11690, 12370, 17318, 23380, 24740, 34636, 43295, 86590, 173180, 206579, 413158, 826316, 1032895, 1446053, 2065790, 2892106, 4131580, 5784212, 7230265, 14460530, 28921060]

約数ペア:

[(1, 28921060), (2, 14460530), (4, 7230265), (5, 5784212), (7, 4131580), (10, 2892106), (14, 2065790), (20, 1446053), (28, 1032895), (35, 826316), (70, 413158), (140, 206579), (167, 173180), (334, 86590), (668, 43295), (835, 34636), (1169, 24740), (1237, 23380), (1670, 17318), (2338, 12370), (2474, 11690), (3340, 8659), (4676, 6185), (4948, 5845)]