20448190

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{1439}}^1$

素因数の和:1489

約数の個数: 48

約数和(自身を含む): 44323200

約数和(自身を除く): 23875010

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 49, 58, 70, 98, 145, 203, 245, 290, 406, 490, 1015, 1421, 1439, 2030, 2842, 2878, 7105, 7195, 10073, 14210, 14390, 20146, 41731, 50365, 70511, 83462, 100730, 141022, 208655, 292117, 352555, 417310, 584234, 705110, 1460585, 2044819, 2921170, 4089638, 10224095, 20448190]

約数ペア:

[(1, 20448190), (2, 10224095), (5, 4089638), (7, 2921170), (10, 2044819), (14, 1460585), (29, 705110), (35, 584234), (49, 417310), (58, 352555), (70, 292117), (98, 208655), (145, 141022), (203, 100730), (245, 83462), (290, 70511), (406, 50365), (490, 41731), (1015, 20146), (1421, 14390), (1439, 14210), (2030, 10073), (2842, 7195), (2878, 7105)]