28231268

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 55895280

約数和(自身を除く): 27664012

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 97, 116, 193, 194, 377, 386, 388, 754, 772, 1261, 1508, 2509, 2522, 2813, 5018, 5044, 5597, 5626, 10036, 11194, 11252, 18721, 22388, 36569, 37442, 72761, 73138, 74884, 145522, 146276, 243373, 291044, 486746, 542909, 973492, 1085818, 2171636, 7057817, 14115634, 28231268]

約数ペア:

[(1, 28231268), (2, 14115634), (4, 7057817), (13, 2171636), (26, 1085818), (29, 973492), (52, 542909), (58, 486746), (97, 291044), (116, 243373), (193, 146276), (194, 145522), (377, 74884), (386, 73138), (388, 72761), (754, 37442), (772, 36569), (1261, 22388), (1508, 18721), (2509, 11252), (2522, 11194), (2813, 10036), (5018, 5626), (5044, 5597)]