20011720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29429}}^1$

素因数の和:29457

約数の個数: 32

約数和(自身を含む): 47676600

約数和(自身を除く): 27664880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 29429, 58858, 117716, 147145, 235432, 294290, 500293, 588580, 1000586, 1177160, 2001172, 2501465, 4002344, 5002930, 10005860, 20011720]

約数ペア:

[(1, 20011720), (2, 10005860), (4, 5002930), (5, 4002344), (8, 2501465), (10, 2001172), (17, 1177160), (20, 1000586), (34, 588580), (40, 500293), (68, 294290), (85, 235432), (136, 147145), (170, 117716), (340, 58858), (680, 29429)]