19978448

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{6151}}^1$

素因数の和:6195

約数の個数: 40

約数和(自身を含む): 45770880

約数和(自身を除く): 25792432

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 203, 232, 406, 464, 812, 1624, 3248, 6151, 12302, 24604, 43057, 49208, 86114, 98416, 172228, 178379, 344456, 356758, 688912, 713516, 1248653, 1427032, 2497306, 2854064, 4994612, 9989224, 19978448]

約数ペア:

[(1, 19978448), (2, 9989224), (4, 4994612), (7, 2854064), (8, 2497306), (14, 1427032), (16, 1248653), (28, 713516), (29, 688912), (56, 356758), (58, 344456), (112, 178379), (116, 172228), (203, 98416), (232, 86114), (406, 49208), (464, 43057), (812, 24604), (1624, 12302), (3248, 6151)]