72804280

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{21929}}^1$

素因数の和:22023

約数の個数: 32

約数和(自身を含む): 165790800

約数和(自身を除く): 92986520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 21929, 43858, 87716, 109645, 175432, 219290, 438580, 877160, 1820107, 3640214, 7280428, 9100535, 14560856, 18201070, 36402140, 72804280]

約数ペア:

[(1, 72804280), (2, 36402140), (4, 18201070), (5, 14560856), (8, 9100535), (10, 7280428), (20, 3640214), (40, 1820107), (83, 877160), (166, 438580), (332, 219290), (415, 175432), (664, 109645), (830, 87716), (1660, 43858), (3320, 21929)]