208719080

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{23399}}^1$

素因数の和:23633

約数の個数: 32

約数和(自身を含む): 471744000

約数和(自身を除く): 263024920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 8920, 23399, 46798, 93596, 116995, 187192, 233990, 467980, 935960, 5217977, 10435954, 20871908, 26089885, 41743816, 52179770, 104359540, 208719080]

約数ペア:

[(1, 208719080), (2, 104359540), (4, 52179770), (5, 41743816), (8, 26089885), (10, 20871908), (20, 10435954), (40, 5217977), (223, 935960), (446, 467980), (892, 233990), (1115, 187192), (1784, 116995), (2230, 93596), (4460, 46798), (8920, 23399)]