17453780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1997}}^1$

素因数の和:2048

約数の個数: 48

約数和(自身を含む): 40279680

約数和(自身を除く): 22825900

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 230, 380, 437, 460, 874, 1748, 1997, 2185, 3994, 4370, 7988, 8740, 9985, 19970, 37943, 39940, 45931, 75886, 91862, 151772, 183724, 189715, 229655, 379430, 459310, 758860, 872689, 918620, 1745378, 3490756, 4363445, 8726890, 17453780]

約数ペア:

[(1, 17453780), (2, 8726890), (4, 4363445), (5, 3490756), (10, 1745378), (19, 918620), (20, 872689), (23, 758860), (38, 459310), (46, 379430), (76, 229655), (92, 189715), (95, 183724), (115, 151772), (190, 91862), (230, 75886), (380, 45931), (437, 39940), (460, 37943), (874, 19970), (1748, 9985), (1997, 8740), (2185, 7988), (3994, 4370)]