19388840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28513}}^1$

素因数の和:28541

約数の個数: 32

約数和(自身を含む): 46192680

約数和(自身を除く): 26803840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 28513, 57026, 114052, 142565, 228104, 285130, 484721, 570260, 969442, 1140520, 1938884, 2423605, 3877768, 4847210, 9694420, 19388840]

約数ペア:

[(1, 19388840), (2, 9694420), (4, 4847210), (5, 3877768), (8, 2423605), (10, 1938884), (17, 1140520), (20, 969442), (34, 570260), (40, 484721), (68, 285130), (85, 228104), (136, 142565), (170, 114052), (340, 57026), (680, 28513)]