338986240

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8543}}^1$

素因数の和:8595

約数の個数: 72

約数和(自身を含む): 838268928

約数和(自身を除く): 499282688

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, 7936, 8543, 9920, 17086, 19840, 34172, 39680, 42715, 68344, 85430, 136688, 170860, 264833, 273376, 341720, 529666, 546752, 683440, 1059332, 1093504, 1324165, 1366880, 2118664, 2187008, 2648330, 2733760, 4237328, 5296660, 5467520, 8474656, 10593320, 10935040, 16949312, 21186640, 33898624, 42373280, 67797248, 84746560, 169493120, 338986240]

約数ペア:

[(1, 338986240), (2, 169493120), (4, 84746560), (5, 67797248), (8, 42373280), (10, 33898624), (16, 21186640), (20, 16949312), (31, 10935040), (32, 10593320), (40, 8474656), (62, 5467520), (64, 5296660), (80, 4237328), (124, 2733760), (128, 2648330), (155, 2187008), (160, 2118664), (248, 1366880), (256, 1324165), (310, 1093504), (320, 1059332), (496, 683440), (620, 546752), (640, 529666), (992, 341720), (1240, 273376), (1280, 264833), (1984, 170860), (2480, 136688), (3968, 85430), (4960, 68344), (7936, 42715), (8543, 39680), (9920, 34172), (17086, 19840)]