208775140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{2819}}^1$

素因数の和:2881

約数の個数: 72

約数和(自身を含む): 523978560

約数和(自身を除く): 315203420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 529, 644, 805, 1058, 1610, 2116, 2645, 2819, 3220, 3703, 5290, 5638, 7406, 10580, 11276, 14095, 14812, 18515, 19733, 28190, 37030, 39466, 56380, 64837, 74060, 78932, 98665, 129674, 197330, 259348, 324185, 394660, 453859, 648370, 907718, 1296740, 1491251, 1815436, 2269295, 2982502, 4538590, 5965004, 7456255, 9077180, 10438757, 14912510, 20877514, 29825020, 41755028, 52193785, 104387570, 208775140]

約数ペア:

[(1, 208775140), (2, 104387570), (4, 52193785), (5, 41755028), (7, 29825020), (10, 20877514), (14, 14912510), (20, 10438757), (23, 9077180), (28, 7456255), (35, 5965004), (46, 4538590), (70, 2982502), (92, 2269295), (115, 1815436), (140, 1491251), (161, 1296740), (230, 907718), (322, 648370), (460, 453859), (529, 394660), (644, 324185), (805, 259348), (1058, 197330), (1610, 129674), (2116, 98665), (2645, 78932), (2819, 74060), (3220, 64837), (3703, 56380), (5290, 39466), (5638, 37030), (7406, 28190), (10580, 19733), (11276, 18515), (14095, 14812)]