2800720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2693}}^1$

素因数の和:2719

約数の個数: 40

約数和(自身を含む): 7015176

約数和(自身を除く): 4214456

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 2693, 5386, 10772, 13465, 21544, 26930, 35009, 43088, 53860, 70018, 107720, 140036, 175045, 215440, 280072, 350090, 560144, 700180, 1400360, 2800720]

約数ペア:

[(1, 2800720), (2, 1400360), (4, 700180), (5, 560144), (8, 350090), (10, 280072), (13, 215440), (16, 175045), (20, 140036), (26, 107720), (40, 70018), (52, 53860), (65, 43088), (80, 35009), (104, 26930), (130, 21544), (208, 13465), (260, 10772), (520, 5386), (1040, 2693)]