81314408

素因数分解:

$2^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{19891}}^1$

素因数の和:19977

約数の個数: 32

約数和(自身を含む): 176640960

約数和(自身を除く): 95326552

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 73, 146, 292, 511, 584, 1022, 2044, 4088, 19891, 39782, 79564, 139237, 159128, 278474, 556948, 1113896, 1452043, 2904086, 5808172, 10164301, 11616344, 20328602, 40657204, 81314408]

約数ペア:

[(1, 81314408), (2, 40657204), (4, 20328602), (7, 11616344), (8, 10164301), (14, 5808172), (28, 2904086), (56, 1452043), (73, 1113896), (146, 556948), (292, 278474), (511, 159128), (584, 139237), (1022, 79564), (2044, 39782), (4088, 19891)]