28706356

素因数分解:

$2^2\times 7^6\times {\mathrm{61}}^1$

素因数の和:107

約数の個数: 42

約数和(自身を含む): 59569538

約数和(自身を除く): 30863182

約数列:

[1, 2, 4, 7, 14, 28, 49, 61, 98, 122, 196, 244, 343, 427, 686, 854, 1372, 1708, 2401, 2989, 4802, 5978, 9604, 11956, 16807, 20923, 33614, 41846, 67228, 83692, 117649, 146461, 235298, 292922, 470596, 585844, 1025227, 2050454, 4100908, 7176589, 14353178, 28706356]

約数ペア:

[(1, 28706356), (2, 14353178), (4, 7176589), (7, 4100908), (14, 2050454), (28, 1025227), (49, 585844), (61, 470596), (98, 292922), (122, 235298), (196, 146461), (244, 117649), (343, 83692), (427, 67228), (686, 41846), (854, 33614), (1372, 20923), (1708, 16807), (2401, 11956), (2989, 9604), (4802, 5978)]