420996368

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{599}}^1$

素因数の和:760

約数の個数: 80

約数和(自身を含む): 916608000

約数和(自身を除く): 495611632

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 109, 124, 208, 218, 248, 403, 436, 496, 599, 806, 872, 1198, 1417, 1612, 1744, 2396, 2834, 3224, 3379, 4792, 5668, 6448, 6758, 7787, 9584, 11336, 13516, 15574, 18569, 22672, 27032, 31148, 37138, 43927, 54064, 62296, 65291, 74276, 87854, 124592, 130582, 148552, 175708, 241397, 261164, 297104, 351416, 482794, 522328, 702832, 848783, 965588, 1044656, 1697566, 1931176, 2024021, 3395132, 3862352, 4048042, 6790264, 8096084, 13580528, 16192168, 26312273, 32384336, 52624546, 105249092, 210498184, 420996368]

約数ペア:

[(1, 420996368), (2, 210498184), (4, 105249092), (8, 52624546), (13, 32384336), (16, 26312273), (26, 16192168), (31, 13580528), (52, 8096084), (62, 6790264), (104, 4048042), (109, 3862352), (124, 3395132), (208, 2024021), (218, 1931176), (248, 1697566), (403, 1044656), (436, 965588), (496, 848783), (599, 702832), (806, 522328), (872, 482794), (1198, 351416), (1417, 297104), (1612, 261164), (1744, 241397), (2396, 175708), (2834, 148552), (3224, 130582), (3379, 124592), (4792, 87854), (5668, 74276), (6448, 65291), (6758, 62296), (7787, 54064), (9584, 43927), (11336, 37138), (13516, 31148), (15574, 27032), (18569, 22672)]