28138580

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{19273}}^1$

素因数の和:19355

約数の個数: 24

約数和(自身を含む): 59903592

約数和(自身を除く): 31765012

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 19273, 38546, 77092, 96365, 192730, 385460, 1406929, 2813858, 5627716, 7034645, 14069290, 28138580]

約数ペア:

[(1, 28138580), (2, 14069290), (4, 7034645), (5, 5627716), (10, 2813858), (20, 1406929), (73, 385460), (146, 192730), (292, 96365), (365, 77092), (730, 38546), (1460, 19273)]