80657990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{39733}}^1$

素因数の和:39776

約数の個数: 32

約数和(自身を含む): 171650880

約数和(自身を除く): 90992890

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 39733, 79466, 198665, 278131, 397330, 556262, 1152257, 1390655, 2304514, 2781310, 5761285, 8065799, 11522570, 16131598, 40328995, 80657990]

約数ペア:

[(1, 80657990), (2, 40328995), (5, 16131598), (7, 11522570), (10, 8065799), (14, 5761285), (29, 2781310), (35, 2304514), (58, 1390655), (70, 1152257), (145, 556262), (203, 397330), (290, 278131), (406, 198665), (1015, 79466), (2030, 39733)]