170444860

素因数分解:

$2^2\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{4289}}^1$

素因数の和:6285

約数の個数: 24

約数和(自身を含む): 358197840

約数和(自身を除く): 187752980

約数列:

[1, 2, 4, 5, 10, 20, 1987, 3974, 4289, 7948, 8578, 9935, 17156, 19870, 21445, 39740, 42890, 85780, 8522243, 17044486, 34088972, 42611215, 85222430, 170444860]

約数ペア:

[(1, 170444860), (2, 85222430), (4, 42611215), (5, 34088972), (10, 17044486), (20, 8522243), (1987, 85780), (3974, 42890), (4289, 39740), (7948, 21445), (8578, 19870), (9935, 17156)]