12780320

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11411}}^1$

素因数の和:11433

約数の個数: 48

約数和(自身を含む): 34509888

約数和(自身を除く): 21729568

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 11411, 22822, 45644, 57055, 79877, 91288, 114110, 159754, 182576, 228220, 319508, 365152, 399385, 456440, 639016, 798770, 912880, 1278032, 1597540, 1825760, 2556064, 3195080, 6390160, 12780320]

約数ペア:

[(1, 12780320), (2, 6390160), (4, 3195080), (5, 2556064), (7, 1825760), (8, 1597540), (10, 1278032), (14, 912880), (16, 798770), (20, 639016), (28, 456440), (32, 399385), (35, 365152), (40, 319508), (56, 228220), (70, 182576), (80, 159754), (112, 114110), (140, 91288), (160, 79877), (224, 57055), (280, 45644), (560, 22822), (1120, 11411)]