133688440

素因数分解:

$2^3\times 5^1\times {\mathrm{1399}}^1\times {\mathrm{2389}}^1$

素因数の和:3799

約数の個数: 32

約数和(自身を含む): 301140000

約数和(自身を除く): 167451560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1399, 2389, 2798, 4778, 5596, 6995, 9556, 11192, 11945, 13990, 19112, 23890, 27980, 47780, 55960, 95560, 3342211, 6684422, 13368844, 16711055, 26737688, 33422110, 66844220, 133688440]

約数ペア:

[(1, 133688440), (2, 66844220), (4, 33422110), (5, 26737688), (8, 16711055), (10, 13368844), (20, 6684422), (40, 3342211), (1399, 95560), (2389, 55960), (2798, 47780), (4778, 27980), (5596, 23890), (6995, 19112), (9556, 13990), (11192, 11945)]