208039390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{431}}^1$

素因数の和:577

約数の個数: 64

約数和(自身を含む): 418037760

約数和(自身を除く): 209998370

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 79, 94, 130, 158, 235, 395, 431, 470, 611, 790, 862, 1027, 1222, 2054, 2155, 3055, 3713, 4310, 5135, 5603, 6110, 7426, 10270, 11206, 18565, 20257, 28015, 34049, 37130, 40514, 48269, 56030, 68098, 96538, 101285, 170245, 202570, 241345, 263341, 340490, 442637, 482690, 526682, 885274, 1316705, 1600303, 2213185, 2633410, 3200606, 4426370, 8001515, 16003030, 20803939, 41607878, 104019695, 208039390]

約数ペア:

[(1, 208039390), (2, 104019695), (5, 41607878), (10, 20803939), (13, 16003030), (26, 8001515), (47, 4426370), (65, 3200606), (79, 2633410), (94, 2213185), (130, 1600303), (158, 1316705), (235, 885274), (395, 526682), (431, 482690), (470, 442637), (611, 340490), (790, 263341), (862, 241345), (1027, 202570), (1222, 170245), (2054, 101285), (2155, 96538), (3055, 68098), (3713, 56030), (4310, 48269), (5135, 40514), (5603, 37130), (6110, 34049), (7426, 28015), (10270, 20257), (11206, 18565)]