18258205

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{613}}^1$

素因数の和:685

約数の個数: 32

約数和(自身を含む): 26878464

約数和(自身を除く): 8620259

約数列:

[1, 5, 7, 23, 35, 37, 115, 161, 185, 259, 613, 805, 851, 1295, 3065, 4255, 4291, 5957, 14099, 21455, 22681, 29785, 70495, 98693, 113405, 158767, 493465, 521663, 793835, 2608315, 3651641, 18258205]

約数ペア:

[(1, 18258205), (5, 3651641), (7, 2608315), (23, 793835), (35, 521663), (37, 493465), (115, 158767), (161, 113405), (185, 98693), (259, 70495), (613, 29785), (805, 22681), (851, 21455), (1295, 14099), (3065, 5957), (4255, 4291)]