20120123120

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5848873}}^1$

素因数の和:5848929

約数の個数: 40

約数和(自身を含む): 47867184816

約数和(自身を除く): 27747061696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 5848873, 11697746, 23395492, 29244365, 46790984, 58488730, 93581968, 116977460, 233954920, 251501539, 467909840, 503003078, 1006006156, 1257507695, 2012012312, 2515015390, 4024024624, 5030030780, 10060061560, 20120123120]

約数ペア:

[(1, 20120123120), (2, 10060061560), (4, 5030030780), (5, 4024024624), (8, 2515015390), (10, 2012012312), (16, 1257507695), (20, 1006006156), (40, 503003078), (43, 467909840), (80, 251501539), (86, 233954920), (172, 116977460), (215, 93581968), (344, 58488730), (430, 46790984), (688, 29244365), (860, 23395492), (1720, 11697746), (3440, 5848873)]