29872540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 64532160

約数和(自身を除く): 34659620

約数列:

[1, 2, 4, 5, 10, 20, 71, 109, 142, 193, 218, 284, 355, 386, 436, 545, 710, 772, 965, 1090, 1420, 1930, 2180, 3860, 7739, 13703, 15478, 21037, 27406, 30956, 38695, 42074, 54812, 68515, 77390, 84148, 105185, 137030, 154780, 210370, 274060, 420740, 1493627, 2987254, 5974508, 7468135, 14936270, 29872540]

約数ペア:

[(1, 29872540), (2, 14936270), (4, 7468135), (5, 5974508), (10, 2987254), (20, 1493627), (71, 420740), (109, 274060), (142, 210370), (193, 154780), (218, 137030), (284, 105185), (355, 84148), (386, 77390), (436, 68515), (545, 54812), (710, 42074), (772, 38695), (965, 30956), (1090, 27406), (1420, 21037), (1930, 15478), (2180, 13703), (3860, 7739)]