20213489740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{403141}}^1$

素因数の和:403282

約数の個数: 48

約数和(自身を含む): 44700384960

約数和(自身を除く): 24486895220

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 109, 115, 218, 230, 436, 460, 545, 1090, 2180, 2507, 5014, 10028, 12535, 25070, 50140, 403141, 806282, 1612564, 2015705, 4031410, 8062820, 9272243, 18544486, 37088972, 43942369, 46361215, 87884738, 92722430, 175769476, 185444860, 219711845, 439423690, 878847380, 1010674487, 2021348974, 4042697948, 5053372435, 10106744870, 20213489740]

約数ペア:

[(1, 20213489740), (2, 10106744870), (4, 5053372435), (5, 4042697948), (10, 2021348974), (20, 1010674487), (23, 878847380), (46, 439423690), (92, 219711845), (109, 185444860), (115, 175769476), (218, 92722430), (230, 87884738), (436, 46361215), (460, 43942369), (545, 37088972), (1090, 18544486), (2180, 9272243), (2507, 8062820), (5014, 4031410), (10028, 2015705), (12535, 1612564), (25070, 806282), (50140, 403141)]