1291245320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1699007}}^1$

素因数の和:1699037

約数の個数: 32

約数和(自身を含む): 3058214400

約数和(自身を除く): 1766969080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 1699007, 3398014, 6796028, 8495035, 13592056, 16990070, 32281133, 33980140, 64562266, 67960280, 129124532, 161405665, 258249064, 322811330, 645622660, 1291245320]

約数ペア:

[(1, 1291245320), (2, 645622660), (4, 322811330), (5, 258249064), (8, 161405665), (10, 129124532), (19, 67960280), (20, 64562266), (38, 33980140), (40, 32281133), (76, 16990070), (95, 13592056), (152, 8495035), (190, 6796028), (380, 3398014), (760, 1699007)]