9004420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 19756800

約数和(自身を除く): 10752380

約数列:

[1, 2, 4, 5, 10, 20, 41, 79, 82, 139, 158, 164, 205, 278, 316, 395, 410, 556, 695, 790, 820, 1390, 1580, 2780, 3239, 5699, 6478, 10981, 11398, 12956, 16195, 21962, 22796, 28495, 32390, 43924, 54905, 56990, 64780, 109810, 113980, 219620, 450221, 900442, 1800884, 2251105, 4502210, 9004420]

約数ペア:

[(1, 9004420), (2, 4502210), (4, 2251105), (5, 1800884), (10, 900442), (20, 450221), (41, 219620), (79, 113980), (82, 109810), (139, 64780), (158, 56990), (164, 54905), (205, 43924), (278, 32390), (316, 28495), (395, 22796), (410, 21962), (556, 16195), (695, 12956), (790, 11398), (820, 10981), (1390, 6478), (1580, 5699), (2780, 3239)]