20162455920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{80239}}^1$

素因数の和:80607

約数の個数: 120

約数和(自身を含む): 67907112000

約数和(自身を除く): 47744656080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 349, 360, 698, 720, 1047, 1396, 1745, 2094, 2792, 3141, 3490, 4188, 5235, 5584, 6282, 6980, 8376, 10470, 12564, 13960, 15705, 16752, 20940, 25128, 27920, 31410, 41880, 50256, 62820, 80239, 83760, 125640, 160478, 240717, 251280, 320956, 401195, 481434, 641912, 722151, 802390, 962868, 1203585, 1283824, 1444302, 1604780, 1925736, 2407170, 2888604, 3209560, 3610755, 3851472, 4814340, 5777208, 6419120, 7221510, 9628680, 11554416, 14443020, 19257360, 28003411, 28886040, 56006822, 57772080, 84010233, 112013644, 140017055, 168020466, 224027288, 252030699, 280034110, 336040932, 420051165, 448054576, 504061398, 560068220, 672081864, 840102330, 1008122796, 1120136440, 1260153495, 1344163728, 1680204660, 2016245592, 2240272880, 2520306990, 3360409320, 4032491184, 5040613980, 6720818640, 10081227960, 20162455920]

約数ペア:

[(1, 20162455920), (2, 10081227960), (3, 6720818640), (4, 5040613980), (5, 4032491184), (6, 3360409320), (8, 2520306990), (9, 2240272880), (10, 2016245592), (12, 1680204660), (15, 1344163728), (16, 1260153495), (18, 1120136440), (20, 1008122796), (24, 840102330), (30, 672081864), (36, 560068220), (40, 504061398), (45, 448054576), (48, 420051165), (60, 336040932), (72, 280034110), (80, 252030699), (90, 224027288), (120, 168020466), (144, 140017055), (180, 112013644), (240, 84010233), (349, 57772080), (360, 56006822), (698, 28886040), (720, 28003411), (1047, 19257360), (1396, 14443020), (1745, 11554416), (2094, 9628680), (2792, 7221510), (3141, 6419120), (3490, 5777208), (4188, 4814340), (5235, 3851472), (5584, 3610755), (6282, 3209560), (6980, 2888604), (8376, 2407170), (10470, 1925736), (12564, 1604780), (13960, 1444302), (15705, 1283824), (16752, 1203585), (20940, 962868), (25128, 802390), (27920, 722151), (31410, 641912), (41880, 481434), (50256, 401195), (62820, 320956), (80239, 251280), (83760, 240717), (125640, 160478)]