131564816

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{457}}^1\times {\mathrm{947}}^1$

素因数の和:1431

約数の個数: 40

約数和(自身を含む): 269194080

約数和(自身を除く): 137629264

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 457, 914, 947, 1828, 1894, 3656, 3788, 7312, 7576, 8683, 15152, 17366, 17993, 34732, 35986, 69464, 71972, 138928, 143944, 287888, 432779, 865558, 1731116, 3462232, 6924464, 8222801, 16445602, 32891204, 65782408, 131564816]

約数ペア:

[(1, 131564816), (2, 65782408), (4, 32891204), (8, 16445602), (16, 8222801), (19, 6924464), (38, 3462232), (76, 1731116), (152, 865558), (304, 432779), (457, 287888), (914, 143944), (947, 138928), (1828, 71972), (1894, 69464), (3656, 35986), (3788, 34732), (7312, 17993), (7576, 17366), (8683, 15152)]