111680720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{431}}^1$

素因数の和:564

約数の個数: 80

約数和(自身を含む): 269982720

約数和(自身を除く): 158302000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 79, 80, 82, 158, 164, 205, 316, 328, 395, 410, 431, 632, 656, 790, 820, 862, 1264, 1580, 1640, 1724, 2155, 3160, 3239, 3280, 3448, 4310, 6320, 6478, 6896, 8620, 12956, 16195, 17240, 17671, 25912, 32390, 34049, 34480, 35342, 51824, 64780, 68098, 70684, 88355, 129560, 136196, 141368, 170245, 176710, 259120, 272392, 282736, 340490, 353420, 544784, 680980, 706840, 1361960, 1396009, 1413680, 2723920, 2792018, 5584036, 6980045, 11168072, 13960090, 22336144, 27920180, 55840360, 111680720]

約数ペア:

[(1, 111680720), (2, 55840360), (4, 27920180), (5, 22336144), (8, 13960090), (10, 11168072), (16, 6980045), (20, 5584036), (40, 2792018), (41, 2723920), (79, 1413680), (80, 1396009), (82, 1361960), (158, 706840), (164, 680980), (205, 544784), (316, 353420), (328, 340490), (395, 282736), (410, 272392), (431, 259120), (632, 176710), (656, 170245), (790, 141368), (820, 136196), (862, 129560), (1264, 88355), (1580, 70684), (1640, 68098), (1724, 64780), (2155, 51824), (3160, 35342), (3239, 34480), (3280, 34049), (3448, 32390), (4310, 25912), (6320, 17671), (6478, 17240), (6896, 16195), (8620, 12956)]