128996840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{6311}}^1$

素因数の和:6402

約数の個数: 64

約数和(自身を含む): 336303360

約数和(自身を除く): 207306520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 1022, 1460, 2044, 2555, 2920, 4088, 5110, 6311, 10220, 12622, 20440, 25244, 31555, 44177, 50488, 63110, 88354, 126220, 176708, 220885, 252440, 353416, 441770, 460703, 883540, 921406, 1767080, 1842812, 2303515, 3224921, 3685624, 4607030, 6449842, 9214060, 12899684, 16124605, 18428120, 25799368, 32249210, 64498420, 128996840]

約数ペア:

[(1, 128996840), (2, 64498420), (4, 32249210), (5, 25799368), (7, 18428120), (8, 16124605), (10, 12899684), (14, 9214060), (20, 6449842), (28, 4607030), (35, 3685624), (40, 3224921), (56, 2303515), (70, 1842812), (73, 1767080), (140, 921406), (146, 883540), (280, 460703), (292, 441770), (365, 353416), (511, 252440), (584, 220885), (730, 176708), (1022, 126220), (1460, 88354), (2044, 63110), (2555, 50488), (2920, 44177), (4088, 31555), (5110, 25244), (6311, 20440), (10220, 12622)]