20120592020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{977}}^1\times {\mathrm{14503}}^1$

素因数の和:15560

約数の個数: 48

約数和(自身を含む): 42895173888

約数和(自身を除く): 22774581868

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 977, 1420, 1954, 3908, 4885, 9770, 14503, 19540, 29006, 58012, 69367, 72515, 138734, 145030, 277468, 290060, 346835, 693670, 1029713, 1387340, 2059426, 4118852, 5148565, 10297130, 14169431, 20594260, 28338862, 56677724, 70847155, 141694310, 283388620, 1006029601, 2012059202, 4024118404, 5030148005, 10060296010, 20120592020]

約数ペア:

[(1, 20120592020), (2, 10060296010), (4, 5030148005), (5, 4024118404), (10, 2012059202), (20, 1006029601), (71, 283388620), (142, 141694310), (284, 70847155), (355, 56677724), (710, 28338862), (977, 20594260), (1420, 14169431), (1954, 10297130), (3908, 5148565), (4885, 4118852), (9770, 2059426), (14503, 1387340), (19540, 1029713), (29006, 693670), (58012, 346835), (69367, 290060), (72515, 277468), (138734, 145030)]