20129686784

素因数分解:

$2^8\times {\mathrm{89}}^1\times {\mathrm{151}}^1\times {\mathrm{5851}}^1$

素因数の和:6107

約数の個数: 72

約数和(自身を含む): 40908288960

約数和(自身を除く): 20778602176

約数列:

[1, 2, 4, 8, 16, 32, 64, 89, 128, 151, 178, 256, 302, 356, 604, 712, 1208, 1424, 2416, 2848, 4832, 5696, 5851, 9664, 11392, 11702, 13439, 19328, 22784, 23404, 26878, 38656, 46808, 53756, 93616, 107512, 187232, 215024, 374464, 430048, 520739, 748928, 860096, 883501, 1041478, 1497856, 1720192, 1767002, 2082956, 3440384, 3534004, 4165912, 7068008, 8331824, 14136016, 16663648, 28272032, 33327296, 56544064, 66654592, 78631589, 113088128, 133309184, 157263178, 226176256, 314526356, 629052712, 1258105424, 2516210848, 5032421696, 10064843392, 20129686784]

約数ペア:

[(1, 20129686784), (2, 10064843392), (4, 5032421696), (8, 2516210848), (16, 1258105424), (32, 629052712), (64, 314526356), (89, 226176256), (128, 157263178), (151, 133309184), (178, 113088128), (256, 78631589), (302, 66654592), (356, 56544064), (604, 33327296), (712, 28272032), (1208, 16663648), (1424, 14136016), (2416, 8331824), (2848, 7068008), (4832, 4165912), (5696, 3534004), (5851, 3440384), (9664, 2082956), (11392, 1767002), (11702, 1720192), (13439, 1497856), (19328, 1041478), (22784, 883501), (23404, 860096), (26878, 748928), (38656, 520739), (46808, 430048), (53756, 374464), (93616, 215024), (107512, 187232)]