20099777776

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{533887}}^1$

素因数の和:534089

約数の個数: 40

約数和(自身を含む): 42170745344

約数和(自身を除く): 22070967568

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 181, 208, 362, 724, 1448, 2353, 2896, 4706, 9412, 18824, 37648, 533887, 1067774, 2135548, 4271096, 6940531, 8542192, 13881062, 27762124, 55524248, 96633547, 111048496, 193267094, 386534188, 773068376, 1256236111, 1546136752, 2512472222, 5024944444, 10049888888, 20099777776]

約数ペア:

[(1, 20099777776), (2, 10049888888), (4, 5024944444), (8, 2512472222), (13, 1546136752), (16, 1256236111), (26, 773068376), (52, 386534188), (104, 193267094), (181, 111048496), (208, 96633547), (362, 55524248), (724, 27762124), (1448, 13881062), (2353, 8542192), (2896, 6940531), (4706, 4271096), (9412, 2135548), (18824, 1067774), (37648, 533887)]