15556880

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1399}}^1$

素因数の和:1551

約数の個数: 40

約数和(自身を含む): 36456000

約数和(自身を除く): 20899120

約数列:

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

約数ペア:

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