89491640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{45659}}^1$

素因数の和:45684

約数の個数: 48

約数和(自身を含む): 234235800

約数和(自身を除く): 144744160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 45659, 91318, 182636, 228295, 319613, 365272, 456590, 639226, 913180, 1278452, 1598065, 1826360, 2237291, 2556904, 3196130, 4474582, 6392260, 8949164, 11186455, 12784520, 17898328, 22372910, 44745820, 89491640]

約数ペア:

[(1, 89491640), (2, 44745820), (4, 22372910), (5, 17898328), (7, 12784520), (8, 11186455), (10, 8949164), (14, 6392260), (20, 4474582), (28, 3196130), (35, 2556904), (40, 2237291), (49, 1826360), (56, 1598065), (70, 1278452), (98, 913180), (140, 639226), (196, 456590), (245, 365272), (280, 319613), (392, 228295), (490, 182636), (980, 91318), (1960, 45659)]