31445570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{439}}^1$

素因数の和:507

約数の個数: 64

約数和(自身を含む): 66528000

約数和(自身を除く): 35082430

約数列:

[1, 2, 5, 10, 13, 19, 26, 29, 38, 58, 65, 95, 130, 145, 190, 247, 290, 377, 439, 494, 551, 754, 878, 1102, 1235, 1885, 2195, 2470, 2755, 3770, 4390, 5510, 5707, 7163, 8341, 11414, 12731, 14326, 16682, 25462, 28535, 35815, 41705, 57070, 63655, 71630, 83410, 108433, 127310, 165503, 216866, 241889, 331006, 483778, 542165, 827515, 1084330, 1209445, 1655030, 2418890, 3144557, 6289114, 15722785, 31445570]

約数ペア:

[(1, 31445570), (2, 15722785), (5, 6289114), (10, 3144557), (13, 2418890), (19, 1655030), (26, 1209445), (29, 1084330), (38, 827515), (58, 542165), (65, 483778), (95, 331006), (130, 241889), (145, 216866), (190, 165503), (247, 127310), (290, 108433), (377, 83410), (439, 71630), (494, 63655), (551, 57070), (754, 41705), (878, 35815), (1102, 28535), (1235, 25462), (1885, 16682), (2195, 14326), (2470, 12731), (2755, 11414), (3770, 8341), (4390, 7163), (5510, 5707)]