21802480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{38933}}^1$

素因数の和:38953

約数の個数: 40

約数和(自身を含む): 57933792

約数和(自身を除く): 36131312

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 38933, 77866, 155732, 194665, 272531, 311464, 389330, 545062, 622928, 778660, 1090124, 1362655, 1557320, 2180248, 2725310, 3114640, 4360496, 5450620, 10901240, 21802480]

約数ペア:

[(1, 21802480), (2, 10901240), (4, 5450620), (5, 4360496), (7, 3114640), (8, 2725310), (10, 2180248), (14, 1557320), (16, 1362655), (20, 1090124), (28, 778660), (35, 622928), (40, 545062), (56, 389330), (70, 311464), (80, 272531), (112, 194665), (140, 155732), (280, 77866), (560, 38933)]