28781584244

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{521}}^1\times {\mathrm{85781}}^1$

素因数の和:86336

約数の個数: 48

約数和(自身を含む): 60181906176

約数和(自身を除く): 31400321932

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 521, 644, 1042, 2084, 3647, 7294, 11983, 14588, 23966, 47932, 83881, 85781, 167762, 171562, 335524, 343124, 600467, 1200934, 1972963, 2401868, 3945926, 7891852, 13810741, 27621482, 44691901, 55242964, 89383802, 178767604, 312843307, 625686614, 1027913723, 1251373228, 2055827446, 4111654892, 7195396061, 14390792122, 28781584244]

約数ペア:

[(1, 28781584244), (2, 14390792122), (4, 7195396061), (7, 4111654892), (14, 2055827446), (23, 1251373228), (28, 1027913723), (46, 625686614), (92, 312843307), (161, 178767604), (322, 89383802), (521, 55242964), (644, 44691901), (1042, 27621482), (2084, 13810741), (3647, 7891852), (7294, 3945926), (11983, 2401868), (14588, 1972963), (23966, 1200934), (47932, 600467), (83881, 343124), (85781, 335524), (167762, 171562)]