18205765

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:213

約数の個数: 32

約数和(自身を含む): 24261120

約数和(自身を除く): 6055355

約数列:

[1, 5, 23, 29, 53, 103, 115, 145, 265, 515, 667, 1219, 1537, 2369, 2987, 3335, 5459, 6095, 7685, 11845, 14935, 27295, 35351, 68701, 125557, 158311, 176755, 343505, 627785, 791555, 3641153, 18205765]

約数ペア:

[(1, 18205765), (5, 3641153), (23, 791555), (29, 627785), (53, 343505), (103, 176755), (115, 158311), (145, 125557), (265, 68701), (515, 35351), (667, 27295), (1219, 14935), (1537, 11845), (2369, 7685), (2987, 6095), (3335, 5459)]