419994640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{1427}}^1$

素因数の和:1736

約数の個数: 80

約数和(自身を含む): 1056057408

約数和(自身を除く): 636062768

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 283, 520, 566, 1040, 1132, 1415, 1427, 2264, 2830, 2854, 3679, 4528, 5660, 5708, 7135, 7358, 11320, 11416, 14270, 14716, 18395, 18551, 22640, 22832, 28540, 29432, 36790, 37102, 57080, 58864, 73580, 74204, 92755, 114160, 147160, 148408, 185510, 294320, 296816, 371020, 403841, 742040, 807682, 1484080, 1615364, 2019205, 3230728, 4038410, 5249933, 6461456, 8076820, 10499866, 16153640, 20999732, 26249665, 32307280, 41999464, 52499330, 83998928, 104998660, 209997320, 419994640]

約数ペア:

[(1, 419994640), (2, 209997320), (4, 104998660), (5, 83998928), (8, 52499330), (10, 41999464), (13, 32307280), (16, 26249665), (20, 20999732), (26, 16153640), (40, 10499866), (52, 8076820), (65, 6461456), (80, 5249933), (104, 4038410), (130, 3230728), (208, 2019205), (260, 1615364), (283, 1484080), (520, 807682), (566, 742040), (1040, 403841), (1132, 371020), (1415, 296816), (1427, 294320), (2264, 185510), (2830, 148408), (2854, 147160), (3679, 114160), (4528, 92755), (5660, 74204), (5708, 73580), (7135, 58864), (7358, 57080), (11320, 37102), (11416, 36790), (14270, 29432), (14716, 28540), (18395, 22832), (18551, 22640)]