81449618

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{2137}}^1$

素因数の和:2234

約数の個数: 32

約数和(自身を含む): 138542400

約数和(自身を除く): 57092782

約数列:

[1, 2, 17, 19, 34, 38, 59, 118, 323, 646, 1003, 1121, 2006, 2137, 2242, 4274, 19057, 36329, 38114, 40603, 72658, 81206, 126083, 252166, 690251, 1380502, 2143411, 2395577, 4286822, 4791154, 40724809, 81449618]

約数ペア:

[(1, 81449618), (2, 40724809), (17, 4791154), (19, 4286822), (34, 2395577), (38, 2143411), (59, 1380502), (118, 690251), (323, 252166), (646, 126083), (1003, 81206), (1121, 72658), (2006, 40603), (2137, 38114), (2242, 36329), (4274, 19057)]