278314780

素因数分解:

$2^2\times 5^1\times {\mathrm{619}}^1\times {\mathrm{22481}}^1$

素因数の和:23109

約数の個数: 24

約数和(自身を含む): 585431280

約数和(自身を除く): 307116500

約数列:

[1, 2, 4, 5, 10, 20, 619, 1238, 2476, 3095, 6190, 12380, 22481, 44962, 89924, 112405, 224810, 449620, 13915739, 27831478, 55662956, 69578695, 139157390, 278314780]

約数ペア:

[(1, 278314780), (2, 139157390), (4, 69578695), (5, 55662956), (10, 27831478), (20, 13915739), (619, 449620), (1238, 224810), (2476, 112405), (3095, 89924), (6190, 44962), (12380, 22481)]