19296680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{863}}^1$

素因数の和:930

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 28603480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 430, 520, 559, 860, 863, 1118, 1720, 1726, 2236, 2795, 3452, 4315, 4472, 5590, 6904, 8630, 11180, 11219, 17260, 22360, 22438, 34520, 37109, 44876, 56095, 74218, 89752, 112190, 148436, 185545, 224380, 296872, 371090, 448760, 482417, 742180, 964834, 1484360, 1929668, 2412085, 3859336, 4824170, 9648340, 19296680]

約数ペア:

[(1, 19296680), (2, 9648340), (4, 4824170), (5, 3859336), (8, 2412085), (10, 1929668), (13, 1484360), (20, 964834), (26, 742180), (40, 482417), (43, 448760), (52, 371090), (65, 296872), (86, 224380), (104, 185545), (130, 148436), (172, 112190), (215, 89752), (260, 74218), (344, 56095), (430, 44876), (520, 37109), (559, 34520), (860, 22438), (863, 22360), (1118, 17260), (1720, 11219), (1726, 11180), (2236, 8630), (2795, 6904), (3452, 5590), (4315, 4472)]