19820920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2441}}^1$

素因数の和:2488

約数の個数: 64

約数和(自身を含む): 52747200

約数和(自身を除く): 32926280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1624, 2030, 2441, 4060, 4882, 8120, 9764, 12205, 17087, 19528, 24410, 34174, 48820, 68348, 70789, 85435, 97640, 136696, 141578, 170870, 283156, 341740, 353945, 495523, 566312, 683480, 707890, 991046, 1415780, 1982092, 2477615, 2831560, 3964184, 4955230, 9910460, 19820920]

約数ペア:

[(1, 19820920), (2, 9910460), (4, 4955230), (5, 3964184), (7, 2831560), (8, 2477615), (10, 1982092), (14, 1415780), (20, 991046), (28, 707890), (29, 683480), (35, 566312), (40, 495523), (56, 353945), (58, 341740), (70, 283156), (116, 170870), (140, 141578), (145, 136696), (203, 97640), (232, 85435), (280, 70789), (290, 68348), (406, 48820), (580, 34174), (812, 24410), (1015, 19528), (1160, 17087), (1624, 12205), (2030, 9764), (2441, 8120), (4060, 4882)]