18520190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1307}}^1$

素因数の和:1436

約数の個数: 32

約数和(自身を含む): 36257760

約数和(自身を除く): 17737570

約数列:

[1, 2, 5, 10, 13, 26, 65, 109, 130, 218, 545, 1090, 1307, 1417, 2614, 2834, 6535, 7085, 13070, 14170, 16991, 33982, 84955, 142463, 169910, 284926, 712315, 1424630, 1852019, 3704038, 9260095, 18520190]

約数ペア:

[(1, 18520190), (2, 9260095), (5, 3704038), (10, 1852019), (13, 1424630), (26, 712315), (65, 284926), (109, 169910), (130, 142463), (218, 84955), (545, 33982), (1090, 16991), (1307, 14170), (1417, 13070), (2614, 7085), (2834, 6535)]