133171640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{475613}}^1$

素因数の和:475631

約数の個数: 32

約数和(自身を含む): 342442080

約数和(自身を除く): 209270440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 475613, 951226, 1902452, 2378065, 3329291, 3804904, 4756130, 6658582, 9512260, 13317164, 16646455, 19024520, 26634328, 33292910, 66585820, 133171640]

約数ペア:

[(1, 133171640), (2, 66585820), (4, 33292910), (5, 26634328), (7, 19024520), (8, 16646455), (10, 13317164), (14, 9512260), (20, 6658582), (28, 4756130), (35, 3804904), (40, 3329291), (56, 2378065), (70, 1902452), (140, 951226), (280, 475613)]