18977875

素因数分解:

$5^3\times 7^1\times {\mathrm{23}}^2\times {\mathrm{41}}^1$

素因数の和:109

約数の個数: 48

約数和(自身を含む): 28986048

約数和(自身を除く): 10008173

約数列:

[1, 5, 7, 23, 25, 35, 41, 115, 125, 161, 175, 205, 287, 529, 575, 805, 875, 943, 1025, 1435, 2645, 2875, 3703, 4025, 4715, 5125, 6601, 7175, 13225, 18515, 20125, 21689, 23575, 33005, 35875, 66125, 92575, 108445, 117875, 151823, 165025, 462875, 542225, 759115, 825125, 2711125, 3795575, 18977875]

約数ペア:

[(1, 18977875), (5, 3795575), (7, 2711125), (23, 825125), (25, 759115), (35, 542225), (41, 462875), (115, 165025), (125, 151823), (161, 117875), (175, 108445), (205, 92575), (287, 66125), (529, 35875), (575, 33005), (805, 23575), (875, 21689), (943, 20125), (1025, 18515), (1435, 13225), (2645, 7175), (2875, 6601), (3703, 5125), (4025, 4715)]