20497330720

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2129}}^1\times {\mathrm{3167}}^1$

素因数の和:5330

約数の個数: 96

約数和(自身を含む): 51013670400

約数和(自身を除く): 30516339680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 2129, 3040, 3167, 4258, 6334, 8516, 10645, 12668, 15835, 17032, 21290, 25336, 31670, 34064, 40451, 42580, 50672, 60173, 63340, 68128, 80902, 85160, 101344, 120346, 126680, 161804, 170320, 202255, 240692, 253360, 300865, 323608, 340640, 404510, 481384, 506720, 601730, 647216, 809020, 962768, 1203460, 1294432, 1618040, 1925536, 2406920, 3236080, 4813840, 6472160, 6742543, 9627680, 13485086, 26970172, 33712715, 53940344, 67425430, 107880688, 128108317, 134850860, 215761376, 256216634, 269701720, 512433268, 539403440, 640541585, 1024866536, 1078806880, 1281083170, 2049733072, 2562166340, 4099466144, 5124332680, 10248665360, 20497330720]

約数ペア:

[(1, 20497330720), (2, 10248665360), (4, 5124332680), (5, 4099466144), (8, 2562166340), (10, 2049733072), (16, 1281083170), (19, 1078806880), (20, 1024866536), (32, 640541585), (38, 539403440), (40, 512433268), (76, 269701720), (80, 256216634), (95, 215761376), (152, 134850860), (160, 128108317), (190, 107880688), (304, 67425430), (380, 53940344), (608, 33712715), (760, 26970172), (1520, 13485086), (2129, 9627680), (3040, 6742543), (3167, 6472160), (4258, 4813840), (6334, 3236080), (8516, 2406920), (10645, 1925536), (12668, 1618040), (15835, 1294432), (17032, 1203460), (21290, 962768), (25336, 809020), (31670, 647216), (34064, 601730), (40451, 506720), (42580, 481384), (50672, 404510), (60173, 340640), (63340, 323608), (68128, 300865), (80902, 253360), (85160, 240692), (101344, 202255), (120346, 170320), (126680, 161804)]