19401590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8779}}^1$

素因数の和:8816

約数の個数: 32

約数和(自身を含む): 39826080

約数和(自身を除く): 20424490

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 8779, 17558, 43895, 87790, 114127, 149243, 228254, 298486, 570635, 746215, 1141270, 1492430, 1940159, 3880318, 9700795, 19401590]

約数ペア:

[(1, 19401590), (2, 9700795), (5, 3880318), (10, 1940159), (13, 1492430), (17, 1141270), (26, 746215), (34, 570635), (65, 298486), (85, 228254), (130, 149243), (170, 114127), (221, 87790), (442, 43895), (1105, 17558), (2210, 8779)]