31990640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{36353}}^1$

素因数の和:36377

約数の個数: 40

約数和(自身を含む): 81142128

約数和(自身を除く): 49151488

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 36353, 72706, 145412, 181765, 290824, 363530, 399883, 581648, 727060, 799766, 1454120, 1599532, 1999415, 2908240, 3199064, 3998830, 6398128, 7997660, 15995320, 31990640]

約数ペア:

[(1, 31990640), (2, 15995320), (4, 7997660), (5, 6398128), (8, 3998830), (10, 3199064), (11, 2908240), (16, 1999415), (20, 1599532), (22, 1454120), (40, 799766), (44, 727060), (55, 581648), (80, 399883), (88, 363530), (110, 290824), (176, 181765), (220, 145412), (440, 72706), (880, 36353)]