8821220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{227}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 19535040

約数和(自身を除く): 10713820

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 67, 116, 134, 145, 227, 268, 290, 335, 454, 580, 670, 908, 1135, 1340, 1943, 2270, 3886, 4540, 6583, 7772, 9715, 13166, 15209, 19430, 26332, 30418, 32915, 38860, 60836, 65830, 76045, 131660, 152090, 304180, 441061, 882122, 1764244, 2205305, 4410610, 8821220]

約数ペア:

[(1, 8821220), (2, 4410610), (4, 2205305), (5, 1764244), (10, 882122), (20, 441061), (29, 304180), (58, 152090), (67, 131660), (116, 76045), (134, 65830), (145, 60836), (227, 38860), (268, 32915), (290, 30418), (335, 26332), (454, 19430), (580, 15209), (670, 13166), (908, 9715), (1135, 7772), (1340, 6583), (1943, 4540), (2270, 3886)]