19401320

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{13109}}^1$

素因数の和:13157

約数の個数: 32

約数和(自身を含む): 44836200

約数和(自身を除く): 25434880

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 13109, 26218, 52436, 65545, 104872, 131090, 262180, 485033, 524360, 970066, 1940132, 2425165, 3880264, 4850330, 9700660, 19401320]

約数ペア:

[(1, 19401320), (2, 9700660), (4, 4850330), (5, 3880264), (8, 2425165), (10, 1940132), (20, 970066), (37, 524360), (40, 485033), (74, 262180), (148, 131090), (185, 104872), (296, 65545), (370, 52436), (740, 26218), (1480, 13109)]