217089280

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5471}}^1$

素因数の和:5523

約数の個数: 72

約数和(自身を含む): 536868864

約数和(自身を除く): 319779584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 5471, 7936, 9920, 10942, 19840, 21884, 27355, 39680, 43768, 54710, 87536, 109420, 169601, 175072, 218840, 339202, 350144, 437680, 678404, 700288, 848005, 875360, 1356808, 1400576, 1696010, 1750720, 2713616, 3392020, 3501440, 5427232, 6784040, 7002880, 10854464, 13568080, 21708928, 27136160, 43417856, 54272320, 108544640, 217089280]

約数ペア:

[(1, 217089280), (2, 108544640), (4, 54272320), (5, 43417856), (8, 27136160), (10, 21708928), (16, 13568080), (20, 10854464), (31, 7002880), (32, 6784040), (40, 5427232), (62, 3501440), (64, 3392020), (80, 2713616), (124, 1750720), (128, 1696010), (155, 1400576), (160, 1356808), (248, 875360), (256, 848005), (310, 700288), (320, 678404), (496, 437680), (620, 350144), (640, 339202), (992, 218840), (1240, 175072), (1280, 169601), (1984, 109420), (2480, 87536), (3968, 54710), (4960, 43768), (5471, 39680), (7936, 27355), (9920, 21884), (10942, 19840)]