20328231296

素因数分解:

$2^7\times {\mathrm{389}}^1\times {\mathrm{408263}}^1$

素因数の和:408666

約数の個数: 32

約数和(自身を含む): 40601854800

約数和(自身を除く): 20273623504

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 389, 778, 1556, 3112, 6224, 12448, 24896, 49792, 408263, 816526, 1633052, 3266104, 6532208, 13064416, 26128832, 52257664, 158814307, 317628614, 635257228, 1270514456, 2541028912, 5082057824, 10164115648, 20328231296]

約数ペア:

[(1, 20328231296), (2, 10164115648), (4, 5082057824), (8, 2541028912), (16, 1270514456), (32, 635257228), (64, 317628614), (128, 158814307), (389, 52257664), (778, 26128832), (1556, 13064416), (3112, 6532208), (6224, 3266104), (12448, 1633052), (24896, 816526), (49792, 408263)]