80444840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{9907}}^1$

素因数の和:9954

約数の個数: 64

約数和(自身を含む): 214012800

約数和(自身を除く): 133567960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1624, 2030, 4060, 8120, 9907, 19814, 39628, 49535, 69349, 79256, 99070, 138698, 198140, 277396, 287303, 346745, 396280, 554792, 574606, 693490, 1149212, 1386980, 1436515, 2011121, 2298424, 2773960, 2873030, 4022242, 5746060, 8044484, 10055605, 11492120, 16088968, 20111210, 40222420, 80444840]

約数ペア:

[(1, 80444840), (2, 40222420), (4, 20111210), (5, 16088968), (7, 11492120), (8, 10055605), (10, 8044484), (14, 5746060), (20, 4022242), (28, 2873030), (29, 2773960), (35, 2298424), (40, 2011121), (56, 1436515), (58, 1386980), (70, 1149212), (116, 693490), (140, 574606), (145, 554792), (203, 396280), (232, 346745), (280, 287303), (290, 277396), (406, 198140), (580, 138698), (812, 99070), (1015, 79256), (1160, 69349), (1624, 49535), (2030, 39628), (4060, 19814), (8120, 9907)]