201990131452

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{312839}}^1$

素因数の和:313042

約数の個数: 48

約数和(自身を含む): 376729436160

約数和(自身を除く): 174739304708

約数列:

[1, 2, 4, 31, 41, 62, 82, 124, 127, 164, 254, 508, 1271, 2542, 3937, 5084, 5207, 7874, 10414, 15748, 20828, 161417, 312839, 322834, 625678, 645668, 1251356, 9698009, 12826399, 19396018, 25652798, 38792036, 39730553, 51305596, 79461106, 158922212, 397618369, 795236738, 1231647143, 1590473476, 1628952673, 2463294286, 3257905346, 4926588572, 6515810692, 50497532863, 100995065726, 201990131452]

約数ペア:

[(1, 201990131452), (2, 100995065726), (4, 50497532863), (31, 6515810692), (41, 4926588572), (62, 3257905346), (82, 2463294286), (124, 1628952673), (127, 1590473476), (164, 1231647143), (254, 795236738), (508, 397618369), (1271, 158922212), (2542, 79461106), (3937, 51305596), (5084, 39730553), (5207, 38792036), (7874, 25652798), (10414, 19396018), (15748, 12826399), (20828, 9698009), (161417, 1251356), (312839, 645668), (322834, 625678)]