391720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1399}}^1$

素因数の和:1417

約数の個数: 32

約数和(自身を含む): 1008000

約数和(自身を除く): 616280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1399, 2798, 5596, 6995, 9793, 11192, 13990, 19586, 27980, 39172, 48965, 55960, 78344, 97930, 195860, 391720]

約数ペア:

[(1, 391720), (2, 195860), (4, 97930), (5, 78344), (7, 55960), (8, 48965), (10, 39172), (14, 27980), (20, 19586), (28, 13990), (35, 11192), (40, 9793), (56, 6995), (70, 5596), (140, 2798), (280, 1399)]