78145280

素因数分解:

$2^8\times 5^1\times {\mathrm{61051}}^1$

素因数の和:61072

約数の個数: 36

約数和(自身を含む): 187185432

約数和(自身を除く): 109040152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 61051, 122102, 244204, 305255, 488408, 610510, 976816, 1221020, 1953632, 2442040, 3907264, 4884080, 7814528, 9768160, 15629056, 19536320, 39072640, 78145280]

約数ペア:

[(1, 78145280), (2, 39072640), (4, 19536320), (5, 15629056), (8, 9768160), (10, 7814528), (16, 4884080), (20, 3907264), (32, 2442040), (40, 1953632), (64, 1221020), (80, 976816), (128, 610510), (160, 488408), (256, 305255), (320, 244204), (640, 122102), (1280, 61051)]