17686520

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 41904000

約数和(自身を除く): 24217480

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 79, 116, 145, 158, 193, 232, 290, 316, 386, 395, 580, 632, 772, 790, 965, 1160, 1544, 1580, 1930, 2291, 3160, 3860, 4582, 5597, 7720, 9164, 11194, 11455, 15247, 18328, 22388, 22910, 27985, 30494, 44776, 45820, 55970, 60988, 76235, 91640, 111940, 121976, 152470, 223880, 304940, 442163, 609880, 884326, 1768652, 2210815, 3537304, 4421630, 8843260, 17686520]

約数ペア:

[(1, 17686520), (2, 8843260), (4, 4421630), (5, 3537304), (8, 2210815), (10, 1768652), (20, 884326), (29, 609880), (40, 442163), (58, 304940), (79, 223880), (116, 152470), (145, 121976), (158, 111940), (193, 91640), (232, 76235), (290, 60988), (316, 55970), (386, 45820), (395, 44776), (580, 30494), (632, 27985), (772, 22910), (790, 22388), (965, 18328), (1160, 15247), (1544, 11455), (1580, 11194), (1930, 9164), (2291, 7720), (3160, 5597), (3860, 4582)]