978018640

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{47569}}^1$

素因数の和:47839

約数の個数: 40

約数和(自身を含む): 2282789160

約数和(自身を除く): 1304770520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 2056, 2570, 4112, 5140, 10280, 20560, 47569, 95138, 190276, 237845, 380552, 475690, 761104, 951380, 1902760, 3805520, 12225233, 24450466, 48900932, 61126165, 97801864, 122252330, 195603728, 244504660, 489009320, 978018640]

約数ペア:

[(1, 978018640), (2, 489009320), (4, 244504660), (5, 195603728), (8, 122252330), (10, 97801864), (16, 61126165), (20, 48900932), (40, 24450466), (80, 12225233), (257, 3805520), (514, 1902760), (1028, 951380), (1285, 761104), (2056, 475690), (2570, 380552), (4112, 237845), (5140, 190276), (10280, 95138), (20560, 47569)]