28072171160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{99223}}^1$

素因数の和:99888

約数の個数: 64

約数和(自身を含む): 69012276480

約数和(自身を除く): 40940105320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 643, 1286, 2572, 3215, 5144, 6430, 7073, 12860, 14146, 25720, 28292, 35365, 56584, 70730, 99223, 141460, 198446, 282920, 396892, 496115, 793784, 992230, 1091453, 1984460, 2182906, 3968920, 4365812, 5457265, 8731624, 10914530, 21829060, 43658120, 63800389, 127600778, 255201556, 319001945, 510403112, 638003890, 701804279, 1276007780, 1403608558, 2552015560, 2807217116, 3509021395, 5614434232, 7018042790, 14036085580, 28072171160]

約数ペア:

[(1, 28072171160), (2, 14036085580), (4, 7018042790), (5, 5614434232), (8, 3509021395), (10, 2807217116), (11, 2552015560), (20, 1403608558), (22, 1276007780), (40, 701804279), (44, 638003890), (55, 510403112), (88, 319001945), (110, 255201556), (220, 127600778), (440, 63800389), (643, 43658120), (1286, 21829060), (2572, 10914530), (3215, 8731624), (5144, 5457265), (6430, 4365812), (7073, 3968920), (12860, 2182906), (14146, 1984460), (25720, 1091453), (28292, 992230), (35365, 793784), (56584, 496115), (70730, 396892), (99223, 282920), (141460, 198446)]