8821640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{12973}}^1$

素因数の和:13001

約数の個数: 32

約数和(自身を含む): 21017880

約数和(自身を除く): 12196240

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 12973, 25946, 51892, 64865, 103784, 129730, 220541, 259460, 441082, 518920, 882164, 1102705, 1764328, 2205410, 4410820, 8821640]

約数ペア:

[(1, 8821640), (2, 4410820), (4, 2205410), (5, 1764328), (8, 1102705), (10, 882164), (17, 518920), (20, 441082), (34, 259460), (40, 220541), (68, 129730), (85, 103784), (136, 64865), (170, 51892), (340, 25946), (680, 12973)]