20090420960

素因数分解:

$2^5\times 5^1\times {\mathrm{149}}^1\times {\mathrm{281}}^1\times {\mathrm{2999}}^1$

素因数の和:3444

約数の個数: 96

約数和(自身を含む): 47968200000

約数和(自身を除く): 27877779040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 149, 160, 281, 298, 562, 596, 745, 1124, 1192, 1405, 1490, 2248, 2384, 2810, 2980, 2999, 4496, 4768, 5620, 5960, 5998, 8992, 11240, 11920, 11996, 14995, 22480, 23840, 23992, 29990, 41869, 44960, 47984, 59980, 83738, 95968, 119960, 167476, 209345, 239920, 334952, 418690, 446851, 479840, 669904, 837380, 842719, 893702, 1339808, 1674760, 1685438, 1787404, 2234255, 3349520, 3370876, 3574808, 4213595, 4468510, 6699040, 6741752, 7149616, 8427190, 8937020, 13483504, 14299232, 16854380, 17874040, 26967008, 33708760, 35748080, 67417520, 71496160, 125565131, 134835040, 251130262, 502260524, 627825655, 1004521048, 1255651310, 2009042096, 2511302620, 4018084192, 5022605240, 10045210480, 20090420960]

約数ペア:

[(1, 20090420960), (2, 10045210480), (4, 5022605240), (5, 4018084192), (8, 2511302620), (10, 2009042096), (16, 1255651310), (20, 1004521048), (32, 627825655), (40, 502260524), (80, 251130262), (149, 134835040), (160, 125565131), (281, 71496160), (298, 67417520), (562, 35748080), (596, 33708760), (745, 26967008), (1124, 17874040), (1192, 16854380), (1405, 14299232), (1490, 13483504), (2248, 8937020), (2384, 8427190), (2810, 7149616), (2980, 6741752), (2999, 6699040), (4496, 4468510), (4768, 4213595), (5620, 3574808), (5960, 3370876), (5998, 3349520), (8992, 2234255), (11240, 1787404), (11920, 1685438), (11996, 1674760), (14995, 1339808), (22480, 893702), (23840, 842719), (23992, 837380), (29990, 669904), (41869, 479840), (44960, 446851), (47984, 418690), (59980, 334952), (83738, 239920), (95968, 209345), (119960, 167476)]