20752400

素因数分解:

$2^4\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1789}}^1$

素因数の和:1836

約数の個数: 60

約数和(自身を含む): 51605700

約数和(自身を除く): 30853300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 40, 50, 58, 80, 100, 116, 145, 200, 232, 290, 400, 464, 580, 725, 1160, 1450, 1789, 2320, 2900, 3578, 5800, 7156, 8945, 11600, 14312, 17890, 28624, 35780, 44725, 51881, 71560, 89450, 103762, 143120, 178900, 207524, 259405, 357800, 415048, 518810, 715600, 830096, 1037620, 1297025, 2075240, 2594050, 4150480, 5188100, 10376200, 20752400]

約数ペア:

[(1, 20752400), (2, 10376200), (4, 5188100), (5, 4150480), (8, 2594050), (10, 2075240), (16, 1297025), (20, 1037620), (25, 830096), (29, 715600), (40, 518810), (50, 415048), (58, 357800), (80, 259405), (100, 207524), (116, 178900), (145, 143120), (200, 103762), (232, 89450), (290, 71560), (400, 51881), (464, 44725), (580, 35780), (725, 28624), (1160, 17890), (1450, 14312), (1789, 11600), (2320, 8945), (2900, 7156), (3578, 5800)]