20407742896

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{389}}^1\times {\mathrm{76253}}^1$

素因数の和:76693

約数の個数: 40

約数和(自身を含む): 40564077840

約数和(自身を除く): 20156334944

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 389, 688, 778, 1556, 3112, 6224, 16727, 33454, 66908, 76253, 133816, 152506, 267632, 305012, 610024, 1220048, 3278879, 6557758, 13115516, 26231032, 29662417, 52462064, 59324834, 118649668, 237299336, 474598672, 1275483931, 2550967862, 5101935724, 10203871448, 20407742896]

約数ペア:

[(1, 20407742896), (2, 10203871448), (4, 5101935724), (8, 2550967862), (16, 1275483931), (43, 474598672), (86, 237299336), (172, 118649668), (344, 59324834), (389, 52462064), (688, 29662417), (778, 26231032), (1556, 13115516), (3112, 6557758), (6224, 3278879), (16727, 1220048), (33454, 610024), (66908, 305012), (76253, 267632), (133816, 152506)]