18495856

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:401

約数の個数: 40

約数和(自身を含む): 37224800

約数和(自身を除く): 18728944

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 157, 199, 296, 314, 398, 592, 628, 796, 1256, 1592, 2512, 3184, 5809, 7363, 11618, 14726, 23236, 29452, 31243, 46472, 58904, 62486, 92944, 117808, 124972, 249944, 499888, 1155991, 2311982, 4623964, 9247928, 18495856]

約数ペア:

[(1, 18495856), (2, 9247928), (4, 4623964), (8, 2311982), (16, 1155991), (37, 499888), (74, 249944), (148, 124972), (157, 117808), (199, 92944), (296, 62486), (314, 58904), (398, 46472), (592, 31243), (628, 29452), (796, 23236), (1256, 14726), (1592, 11618), (2512, 7363), (3184, 5809)]