20336290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{503}}^1$

素因数の和:834

約数の個数: 32

約数和(自身を含む): 39626496

約数和(自身を除く): 19290206

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 311, 503, 622, 1006, 1555, 2515, 3110, 4043, 5030, 6539, 8086, 13078, 20215, 32695, 40430, 65390, 156433, 312866, 782165, 1564330, 2033629, 4067258, 10168145, 20336290]

約数ペア:

[(1, 20336290), (2, 10168145), (5, 4067258), (10, 2033629), (13, 1564330), (26, 782165), (65, 312866), (130, 156433), (311, 65390), (503, 40430), (622, 32695), (1006, 20215), (1555, 13078), (2515, 8086), (3110, 6539), (4043, 5030)]