18377680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{13513}}^1$

素因数の和:13543

約数の個数: 40

約数和(自身を含む): 45244872

約数和(自身を除く): 26867192

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 13513, 27026, 54052, 67565, 108104, 135130, 216208, 229721, 270260, 459442, 540520, 918884, 1081040, 1148605, 1837768, 2297210, 3675536, 4594420, 9188840, 18377680]

約数ペア:

[(1, 18377680), (2, 9188840), (4, 4594420), (5, 3675536), (8, 2297210), (10, 1837768), (16, 1148605), (17, 1081040), (20, 918884), (34, 540520), (40, 459442), (68, 270260), (80, 229721), (85, 216208), (136, 135130), (170, 108104), (272, 67565), (340, 54052), (680, 27026), (1360, 13513)]