12187660

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 26671680

約数和(自身を除く): 14484020

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 89, 164, 167, 178, 205, 334, 356, 410, 445, 668, 820, 835, 890, 1670, 1780, 3340, 3649, 6847, 7298, 13694, 14596, 14863, 18245, 27388, 29726, 34235, 36490, 59452, 68470, 72980, 74315, 136940, 148630, 297260, 609383, 1218766, 2437532, 3046915, 6093830, 12187660]

約数ペア:

[(1, 12187660), (2, 6093830), (4, 3046915), (5, 2437532), (10, 1218766), (20, 609383), (41, 297260), (82, 148630), (89, 136940), (164, 74315), (167, 72980), (178, 68470), (205, 59452), (334, 36490), (356, 34235), (410, 29726), (445, 27388), (668, 18245), (820, 14863), (835, 14596), (890, 13694), (1670, 7298), (1780, 6847), (3340, 3649)]