158721320

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{28547}}^1$

素因数の和:28697

約数の個数: 32

約数和(自身を含む): 359704800

約数和(自身を除く): 200983480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 28547, 57094, 114188, 142735, 228376, 285470, 570940, 1141880, 3968033, 7936066, 15872132, 19840165, 31744264, 39680330, 79360660, 158721320]

約数ペア:

[(1, 158721320), (2, 79360660), (4, 39680330), (5, 31744264), (8, 19840165), (10, 15872132), (20, 7936066), (40, 3968033), (139, 1141880), (278, 570940), (556, 285470), (695, 228376), (1112, 142735), (1390, 114188), (2780, 57094), (5560, 28547)]