218989360

素因数分解:

$2^4\times 5^1\times {\mathrm{2737367}}^1$

素因数の和:2737380

約数の個数: 20

約数和(自身を含む): 509150448

約数和(自身を除く): 290161088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2737367, 5474734, 10949468, 13686835, 21898936, 27373670, 43797872, 54747340, 109494680, 218989360]

約数ペア:

[(1, 218989360), (2, 109494680), (4, 54747340), (5, 43797872), (8, 27373670), (10, 21898936), (16, 13686835), (20, 10949468), (40, 5474734), (80, 2737367)]