51710720

素因数分解:

$2^8\times 5^1\times {\mathrm{71}}^1\times {\mathrm{569}}^1$

素因数の和:661

約数の個数: 72

約数和(自身を含む): 125828640

約数和(自身を除く): 74117920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 256, 284, 320, 355, 568, 569, 640, 710, 1136, 1138, 1280, 1420, 2272, 2276, 2840, 2845, 4544, 4552, 5680, 5690, 9088, 9104, 11360, 11380, 18176, 18208, 22720, 22760, 36416, 40399, 45440, 45520, 72832, 80798, 90880, 91040, 145664, 161596, 182080, 201995, 323192, 364160, 403990, 646384, 728320, 807980, 1292768, 1615960, 2585536, 3231920, 5171072, 6463840, 10342144, 12927680, 25855360, 51710720]

約数ペア:

[(1, 51710720), (2, 25855360), (4, 12927680), (5, 10342144), (8, 6463840), (10, 5171072), (16, 3231920), (20, 2585536), (32, 1615960), (40, 1292768), (64, 807980), (71, 728320), (80, 646384), (128, 403990), (142, 364160), (160, 323192), (256, 201995), (284, 182080), (320, 161596), (355, 145664), (568, 91040), (569, 90880), (640, 80798), (710, 72832), (1136, 45520), (1138, 45440), (1280, 40399), (1420, 36416), (2272, 22760), (2276, 22720), (2840, 18208), (2845, 18176), (4544, 11380), (4552, 11360), (5680, 9104), (5690, 9088)]