199979710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{557}}^1$

素因数の和:817

約数の個数: 64

約数和(自身を含む): 431972352

約数和(自身を除く): 231992642

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 223, 230, 322, 446, 557, 805, 1114, 1115, 1561, 1610, 2230, 2785, 3122, 3899, 5129, 5570, 7798, 7805, 10258, 12811, 15610, 19495, 25622, 25645, 35903, 38990, 51290, 64055, 71806, 89677, 124211, 128110, 179354, 179515, 248422, 359030, 448385, 621055, 869477, 896770, 1242110, 1738954, 2856853, 4347385, 5713706, 8694770, 14284265, 19997971, 28568530, 39995942, 99989855, 199979710]

約数ペア:

[(1, 199979710), (2, 99989855), (5, 39995942), (7, 28568530), (10, 19997971), (14, 14284265), (23, 8694770), (35, 5713706), (46, 4347385), (70, 2856853), (115, 1738954), (161, 1242110), (223, 896770), (230, 869477), (322, 621055), (446, 448385), (557, 359030), (805, 248422), (1114, 179515), (1115, 179354), (1561, 128110), (1610, 124211), (2230, 89677), (2785, 71806), (3122, 64055), (3899, 51290), (5129, 38990), (5570, 35903), (7798, 25645), (7805, 25622), (10258, 19495), (12811, 15610)]