20191430

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{463}}^1$

素因数の和:573

約数の個数: 48

約数和(自身を含む): 42845760

約数和(自身を除く): 22654330

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 89, 98, 178, 245, 445, 463, 490, 623, 890, 926, 1246, 2315, 3115, 3241, 4361, 4630, 6230, 6482, 8722, 16205, 21805, 22687, 32410, 41207, 43610, 45374, 82414, 113435, 206035, 226870, 288449, 412070, 576898, 1442245, 2019143, 2884490, 4038286, 10095715, 20191430]

約数ペア:

[(1, 20191430), (2, 10095715), (5, 4038286), (7, 2884490), (10, 2019143), (14, 1442245), (35, 576898), (49, 412070), (70, 288449), (89, 226870), (98, 206035), (178, 113435), (245, 82414), (445, 45374), (463, 43610), (490, 41207), (623, 32410), (890, 22687), (926, 21805), (1246, 16205), (2315, 8722), (3115, 6482), (3241, 6230), (4361, 4630)]