19645520

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6637}}^1$

素因数の和:6687

約数の個数: 40

約数和(自身を含む): 46917384

約数和(自身を除く): 27271864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 6637, 13274, 26548, 33185, 53096, 66370, 106192, 132740, 245569, 265480, 491138, 530960, 982276, 1227845, 1964552, 2455690, 3929104, 4911380, 9822760, 19645520]

約数ペア:

[(1, 19645520), (2, 9822760), (4, 4911380), (5, 3929104), (8, 2455690), (10, 1964552), (16, 1227845), (20, 982276), (37, 530960), (40, 491138), (74, 265480), (80, 245569), (148, 132740), (185, 106192), (296, 66370), (370, 53096), (592, 33185), (740, 26548), (1480, 13274), (2960, 6637)]