253139320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{904069}}^1$

素因数の和:904087

約数の個数: 32

約数和(自身を含む): 650930400

約数和(自身を除く): 397791080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 904069, 1808138, 3616276, 4520345, 6328483, 7232552, 9040690, 12656966, 18081380, 25313932, 31642415, 36162760, 50627864, 63284830, 126569660, 253139320]

約数ペア:

[(1, 253139320), (2, 126569660), (4, 63284830), (5, 50627864), (7, 36162760), (8, 31642415), (10, 25313932), (14, 18081380), (20, 12656966), (28, 9040690), (35, 7232552), (40, 6328483), (56, 4520345), (70, 3616276), (140, 1808138), (280, 904069)]