80485420

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{55127}}^1$

素因数の和:55209

約数の個数: 24

約数和(自身を含む): 171337824

約数和(自身を除く): 90852404

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 55127, 110254, 220508, 275635, 551270, 1102540, 4024271, 8048542, 16097084, 20121355, 40242710, 80485420]

約数ペア:

[(1, 80485420), (2, 40242710), (4, 20121355), (5, 16097084), (10, 8048542), (20, 4024271), (73, 1102540), (146, 551270), (292, 275635), (365, 220508), (730, 110254), (1460, 55127)]