721812

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 2076032

約数和(自身を除く): 1354220

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 182, 273, 364, 546, 661, 1092, 1322, 1983, 2644, 3966, 4627, 7932, 8593, 9254, 13881, 17186, 18508, 25779, 27762, 34372, 51558, 55524, 60151, 103116, 120302, 180453, 240604, 360906, 721812]

約数ペア:

[(1, 721812), (2, 360906), (3, 240604), (4, 180453), (6, 120302), (7, 103116), (12, 60151), (13, 55524), (14, 51558), (21, 34372), (26, 27762), (28, 25779), (39, 18508), (42, 17186), (52, 13881), (78, 9254), (84, 8593), (91, 7932), (156, 4627), (182, 3966), (273, 2644), (364, 1983), (546, 1322), (661, 1092)]