291226264

素因数分解:

$2^3\times 7^1\times {\mathrm{251}}^1\times {\mathrm{20719}}^1$

素因数の和:20983

約数の個数: 32

約数和(自身を含む): 626572800

約数和(自身を除く): 335346536

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 251, 502, 1004, 1757, 2008, 3514, 7028, 14056, 20719, 41438, 82876, 145033, 165752, 290066, 580132, 1160264, 5200469, 10400938, 20801876, 36403283, 41603752, 72806566, 145613132, 291226264]

約数ペア:

[(1, 291226264), (2, 145613132), (4, 72806566), (7, 41603752), (8, 36403283), (14, 20801876), (28, 10400938), (56, 5200469), (251, 1160264), (502, 580132), (1004, 290066), (1757, 165752), (2008, 145033), (3514, 82876), (7028, 41438), (14056, 20719)]