388520912

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{647}}^1\times {\mathrm{2887}}^1$

素因数の和:3555

約数の個数: 40

約数和(自身を含む): 812198016

約数和(自身を除く): 423677104

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 647, 1294, 2588, 2887, 5176, 5774, 8411, 10352, 11548, 16822, 23096, 33644, 37531, 46192, 67288, 75062, 134576, 150124, 300248, 600496, 1867889, 3735778, 7471556, 14943112, 24282557, 29886224, 48565114, 97130228, 194260456, 388520912]

約数ペア:

[(1, 388520912), (2, 194260456), (4, 97130228), (8, 48565114), (13, 29886224), (16, 24282557), (26, 14943112), (52, 7471556), (104, 3735778), (208, 1867889), (647, 600496), (1294, 300248), (2588, 150124), (2887, 134576), (5176, 75062), (5774, 67288), (8411, 46192), (10352, 37531), (11548, 33644), (16822, 23096)]