20362005

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{619}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 38301120

約数和(自身を除く): 17939115

約数列:

[1, 3, 5, 9, 15, 17, 43, 45, 51, 85, 129, 153, 215, 255, 387, 619, 645, 731, 765, 1857, 1935, 2193, 3095, 3655, 5571, 6579, 9285, 10523, 10965, 26617, 27855, 31569, 32895, 52615, 79851, 94707, 133085, 157845, 239553, 399255, 452489, 473535, 1197765, 1357467, 2262445, 4072401, 6787335, 20362005]

約数ペア:

[(1, 20362005), (3, 6787335), (5, 4072401), (9, 2262445), (15, 1357467), (17, 1197765), (43, 473535), (45, 452489), (51, 399255), (85, 239553), (129, 157845), (153, 133085), (215, 94707), (255, 79851), (387, 52615), (619, 32895), (645, 31569), (731, 27855), (765, 26617), (1857, 10965), (1935, 10523), (2193, 9285), (3095, 6579), (3655, 5571)]