18286385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 24948000

約数和(自身を除く): 6661615

約数列:

[1, 5, 13, 29, 65, 89, 109, 145, 377, 445, 545, 1157, 1417, 1885, 2581, 3161, 5785, 7085, 9701, 12905, 15805, 33553, 41093, 48505, 126113, 167765, 205465, 281329, 630565, 1406645, 3657277, 18286385]

約数ペア:

[(1, 18286385), (5, 3657277), (13, 1406645), (29, 630565), (65, 281329), (89, 205465), (109, 167765), (145, 126113), (377, 48505), (445, 41093), (545, 33553), (1157, 15805), (1417, 12905), (1885, 9701), (2581, 7085), (3161, 5785)]