20163306880

素因数分解:

$2^7\times 5^1\times {\mathrm{37}}^1\times {\mathrm{851491}}^1$

素因数の和:851547

約数の個数: 64

約数和(自身を含む): 49505744880

約数和(自身を除く): 29342438000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 296, 320, 370, 592, 640, 740, 1184, 1480, 2368, 2960, 4736, 5920, 11840, 23680, 851491, 1702982, 3405964, 4257455, 6811928, 8514910, 13623856, 17029820, 27247712, 31505167, 34059640, 54495424, 63010334, 68119280, 108990848, 126020668, 136238560, 157525835, 252041336, 272477120, 315051670, 504082672, 544954240, 630103340, 1008165344, 1260206680, 2016330688, 2520413360, 4032661376, 5040826720, 10081653440, 20163306880]

約数ペア:

[(1, 20163306880), (2, 10081653440), (4, 5040826720), (5, 4032661376), (8, 2520413360), (10, 2016330688), (16, 1260206680), (20, 1008165344), (32, 630103340), (37, 544954240), (40, 504082672), (64, 315051670), (74, 272477120), (80, 252041336), (128, 157525835), (148, 136238560), (160, 126020668), (185, 108990848), (296, 68119280), (320, 63010334), (370, 54495424), (592, 34059640), (640, 31505167), (740, 27247712), (1184, 17029820), (1480, 13623856), (2368, 8514910), (2960, 6811928), (4736, 4257455), (5920, 3405964), (11840, 1702982), (23680, 851491)]