12698276720

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{19507}}^1$

素因数の和:19702

約数の個数: 80

約数和(自身を含む): 30189020160

約数和(自身を除く): 17490743440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 103, 158, 206, 316, 395, 412, 515, 632, 790, 824, 1030, 1264, 1580, 1648, 2060, 3160, 4120, 6320, 8137, 8240, 16274, 19507, 32548, 39014, 40685, 65096, 78028, 81370, 97535, 130192, 156056, 162740, 195070, 312112, 325480, 390140, 650960, 780280, 1541053, 1560560, 2009221, 3082106, 4018442, 6164212, 7705265, 8036884, 10046105, 12328424, 15410530, 16073768, 20092210, 24656848, 30821060, 32147536, 40184420, 61642120, 80368840, 123284240, 158728459, 160737680, 317456918, 634913836, 793642295, 1269827672, 1587284590, 2539655344, 3174569180, 6349138360, 12698276720]

約数ペア:

[(1, 12698276720), (2, 6349138360), (4, 3174569180), (5, 2539655344), (8, 1587284590), (10, 1269827672), (16, 793642295), (20, 634913836), (40, 317456918), (79, 160737680), (80, 158728459), (103, 123284240), (158, 80368840), (206, 61642120), (316, 40184420), (395, 32147536), (412, 30821060), (515, 24656848), (632, 20092210), (790, 16073768), (824, 15410530), (1030, 12328424), (1264, 10046105), (1580, 8036884), (1648, 7705265), (2060, 6164212), (3160, 4018442), (4120, 3082106), (6320, 2009221), (8137, 1560560), (8240, 1541053), (16274, 780280), (19507, 650960), (32548, 390140), (39014, 325480), (40685, 312112), (65096, 195070), (78028, 162740), (81370, 156056), (97535, 130192)]