1240720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1193}}^1$

素因数の和:1219

約数の個数: 40

約数和(自身を含む): 3109176

約数和(自身を除く): 1868456

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1193, 2386, 4772, 5965, 9544, 11930, 15509, 19088, 23860, 31018, 47720, 62036, 77545, 95440, 124072, 155090, 248144, 310180, 620360, 1240720]

約数ペア:

[(1, 1240720), (2, 620360), (4, 310180), (5, 248144), (8, 155090), (10, 124072), (13, 95440), (16, 77545), (20, 62036), (26, 47720), (40, 31018), (52, 23860), (65, 19088), (80, 15509), (104, 11930), (130, 9544), (208, 5965), (260, 4772), (520, 2386), (1040, 1193)]