74707640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{1063}}^1$

素因数の和:1332

約数の個数: 64

約数和(自身を含む): 193052160

約数和(自身を除く): 118344520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 251, 280, 502, 1004, 1063, 1255, 1757, 2008, 2126, 2510, 3514, 4252, 5020, 5315, 7028, 7441, 8504, 8785, 10040, 10630, 14056, 14882, 17570, 21260, 29764, 35140, 37205, 42520, 59528, 70280, 74410, 148820, 266813, 297640, 533626, 1067252, 1334065, 1867691, 2134504, 2668130, 3735382, 5336260, 7470764, 9338455, 10672520, 14941528, 18676910, 37353820, 74707640]

約数ペア:

[(1, 74707640), (2, 37353820), (4, 18676910), (5, 14941528), (7, 10672520), (8, 9338455), (10, 7470764), (14, 5336260), (20, 3735382), (28, 2668130), (35, 2134504), (40, 1867691), (56, 1334065), (70, 1067252), (140, 533626), (251, 297640), (280, 266813), (502, 148820), (1004, 74410), (1063, 70280), (1255, 59528), (1757, 42520), (2008, 37205), (2126, 35140), (2510, 29764), (3514, 21260), (4252, 17570), (5020, 14882), (5315, 14056), (7028, 10630), (7441, 10040), (8504, 8785)]