18847904

素因数分解:

$2^5\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:285

約数の個数: 48

約数和(自身を含む): 38556000

約数和(自身を除く): 19708096

約数列:

[1, 2, 4, 8, 16, 32, 59, 67, 118, 134, 149, 236, 268, 298, 472, 536, 596, 944, 1072, 1192, 1888, 2144, 2384, 3953, 4768, 7906, 8791, 9983, 15812, 17582, 19966, 31624, 35164, 39932, 63248, 70328, 79864, 126496, 140656, 159728, 281312, 319456, 588997, 1177994, 2355988, 4711976, 9423952, 18847904]

約数ペア:

[(1, 18847904), (2, 9423952), (4, 4711976), (8, 2355988), (16, 1177994), (32, 588997), (59, 319456), (67, 281312), (118, 159728), (134, 140656), (149, 126496), (236, 79864), (268, 70328), (298, 63248), (472, 39932), (536, 35164), (596, 31624), (944, 19966), (1072, 17582), (1192, 15812), (1888, 9983), (2144, 8791), (2384, 7906), (3953, 4768)]