31113760

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1399}}^1$

素因数の和:1553

約数の個数: 48

約数和(自身を含む): 74088000

約数和(自身を除く): 42974240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 278, 556, 695, 1112, 1390, 1399, 2224, 2780, 2798, 4448, 5560, 5596, 6995, 11120, 11192, 13990, 22240, 22384, 27980, 44768, 55960, 111920, 194461, 223840, 388922, 777844, 972305, 1555688, 1944610, 3111376, 3889220, 6222752, 7778440, 15556880, 31113760]

約数ペア:

[(1, 31113760), (2, 15556880), (4, 7778440), (5, 6222752), (8, 3889220), (10, 3111376), (16, 1944610), (20, 1555688), (32, 972305), (40, 777844), (80, 388922), (139, 223840), (160, 194461), (278, 111920), (556, 55960), (695, 44768), (1112, 27980), (1390, 22384), (1399, 22240), (2224, 13990), (2780, 11192), (2798, 11120), (4448, 6995), (5560, 5596)]