20806688

素因数分解:

$2^5\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3203}}^1$

素因数の和:3249

約数の個数: 48

約数和(自身を含む): 48444480

約数和(自身を除く): 27637792

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 56, 58, 112, 116, 203, 224, 232, 406, 464, 812, 928, 1624, 3203, 3248, 6406, 6496, 12812, 22421, 25624, 44842, 51248, 89684, 92887, 102496, 179368, 185774, 358736, 371548, 650209, 717472, 743096, 1300418, 1486192, 2600836, 2972384, 5201672, 10403344, 20806688]

約数ペア:

[(1, 20806688), (2, 10403344), (4, 5201672), (7, 2972384), (8, 2600836), (14, 1486192), (16, 1300418), (28, 743096), (29, 717472), (32, 650209), (56, 371548), (58, 358736), (112, 185774), (116, 179368), (203, 102496), (224, 92887), (232, 89684), (406, 51248), (464, 44842), (812, 25624), (928, 22421), (1624, 12812), (3203, 6496), (3248, 6406)]