1656557720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{439}}^1\times {\mathrm{3253}}^1$

素因数の和:3732

約数の個数: 64

約数和(自身を含む): 3865752000

約数和(自身を除く): 2209194280

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 439, 580, 878, 1160, 1756, 2195, 3253, 3512, 4390, 6506, 8780, 12731, 13012, 16265, 17560, 25462, 26024, 32530, 50924, 63655, 65060, 94337, 101848, 127310, 130120, 188674, 254620, 377348, 471685, 509240, 754696, 943370, 1428067, 1886740, 2856134, 3773480, 5712268, 7140335, 11424536, 14280670, 28561340, 41413943, 57122680, 82827886, 165655772, 207069715, 331311544, 414139430, 828278860, 1656557720]

約数ペア:

[(1, 1656557720), (2, 828278860), (4, 414139430), (5, 331311544), (8, 207069715), (10, 165655772), (20, 82827886), (29, 57122680), (40, 41413943), (58, 28561340), (116, 14280670), (145, 11424536), (232, 7140335), (290, 5712268), (439, 3773480), (580, 2856134), (878, 1886740), (1160, 1428067), (1756, 943370), (2195, 754696), (3253, 509240), (3512, 471685), (4390, 377348), (6506, 254620), (8780, 188674), (12731, 130120), (13012, 127310), (16265, 101848), (17560, 94337), (25462, 65060), (26024, 63655), (32530, 50924)]