81231724

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{881}}^1$

素因数の和:1018

約数の個数: 48

約数和(自身を含む): 168920640

約数和(自身を除く): 87688916

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 89, 148, 178, 259, 356, 518, 623, 881, 1036, 1246, 1762, 2492, 3293, 3524, 6167, 6586, 12334, 13172, 23051, 24668, 32597, 46102, 65194, 78409, 92204, 130388, 156818, 228179, 313636, 456358, 548863, 912716, 1097726, 2195452, 2901133, 5802266, 11604532, 20307931, 40615862, 81231724]

約数ペア:

[(1, 81231724), (2, 40615862), (4, 20307931), (7, 11604532), (14, 5802266), (28, 2901133), (37, 2195452), (74, 1097726), (89, 912716), (148, 548863), (178, 456358), (259, 313636), (356, 228179), (518, 156818), (623, 130388), (881, 92204), (1036, 78409), (1246, 65194), (1762, 46102), (2492, 32597), (3293, 24668), (3524, 23051), (6167, 13172), (6586, 12334)]