28993840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21319}}^1$

素因数の和:21349

約数の個数: 40

約数和(自身を含む): 71379360

約数和(自身を除く): 42385520

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 21319, 42638, 85276, 106595, 170552, 213190, 341104, 362423, 426380, 724846, 852760, 1449692, 1705520, 1812115, 2899384, 3624230, 5798768, 7248460, 14496920, 28993840]

約数ペア:

[(1, 28993840), (2, 14496920), (4, 7248460), (5, 5798768), (8, 3624230), (10, 2899384), (16, 1812115), (17, 1705520), (20, 1449692), (34, 852760), (40, 724846), (68, 426380), (80, 362423), (85, 341104), (136, 213190), (170, 170552), (272, 106595), (340, 85276), (680, 42638), (1360, 21319)]