215907188

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{991}}^1$

素因数の和:1284

約数の個数: 48

約数和(自身を含む): 447971328

約数和(自身を除く): 232064140

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 251, 434, 502, 868, 991, 1004, 1757, 1982, 3514, 3964, 6937, 7028, 7781, 13874, 15562, 27748, 30721, 31124, 54467, 61442, 108934, 122884, 215047, 217868, 248741, 430094, 497482, 860188, 994964, 1741187, 3482374, 6964748, 7710971, 15421942, 30843884, 53976797, 107953594, 215907188]

約数ペア:

[(1, 215907188), (2, 107953594), (4, 53976797), (7, 30843884), (14, 15421942), (28, 7710971), (31, 6964748), (62, 3482374), (124, 1741187), (217, 994964), (251, 860188), (434, 497482), (502, 430094), (868, 248741), (991, 217868), (1004, 215047), (1757, 122884), (1982, 108934), (3514, 61442), (3964, 54467), (6937, 31124), (7028, 30721), (7781, 27748), (13874, 15562)]