40781415

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2749}}^1$

素因数の和:2823

約数の個数: 32

約数和(自身を含む): 69696000

約数和(自身を除く): 28914585

約数列:

[1, 3, 5, 15, 23, 43, 69, 115, 129, 215, 345, 645, 989, 2749, 2967, 4945, 8247, 13745, 14835, 41235, 63227, 118207, 189681, 316135, 354621, 591035, 948405, 1773105, 2718761, 8156283, 13593805, 40781415]

約数ペア:

[(1, 40781415), (3, 13593805), (5, 8156283), (15, 2718761), (23, 1773105), (43, 948405), (69, 591035), (115, 354621), (129, 316135), (215, 189681), (345, 118207), (645, 63227), (989, 41235), (2749, 14835), (2967, 13745), (4945, 8247)]