72681280

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{457}}^1$

素因数の和:552

約数の個数: 112

約数和(自身を含む): 201021696

約数和(自身を除く): 128340416

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 71, 80, 112, 140, 142, 160, 224, 280, 284, 320, 355, 448, 457, 497, 560, 568, 710, 914, 994, 1120, 1136, 1420, 1828, 1988, 2240, 2272, 2285, 2485, 2840, 3199, 3656, 3976, 4544, 4570, 4970, 5680, 6398, 7312, 7952, 9140, 9940, 11360, 12796, 14624, 15904, 15995, 18280, 19880, 22720, 25592, 29248, 31808, 31990, 32447, 36560, 39760, 51184, 63980, 64894, 73120, 79520, 102368, 127960, 129788, 146240, 159040, 162235, 204736, 227129, 255920, 259576, 324470, 454258, 511840, 519152, 648940, 908516, 1023680, 1038304, 1135645, 1297880, 1817032, 2076608, 2271290, 2595760, 3634064, 4542580, 5191520, 7268128, 9085160, 10383040, 14536256, 18170320, 36340640, 72681280]

約数ペア:

[(1, 72681280), (2, 36340640), (4, 18170320), (5, 14536256), (7, 10383040), (8, 9085160), (10, 7268128), (14, 5191520), (16, 4542580), (20, 3634064), (28, 2595760), (32, 2271290), (35, 2076608), (40, 1817032), (56, 1297880), (64, 1135645), (70, 1038304), (71, 1023680), (80, 908516), (112, 648940), (140, 519152), (142, 511840), (160, 454258), (224, 324470), (280, 259576), (284, 255920), (320, 227129), (355, 204736), (448, 162235), (457, 159040), (497, 146240), (560, 129788), (568, 127960), (710, 102368), (914, 79520), (994, 73120), (1120, 64894), (1136, 63980), (1420, 51184), (1828, 39760), (1988, 36560), (2240, 32447), (2272, 31990), (2285, 31808), (2485, 29248), (2840, 25592), (3199, 22720), (3656, 19880), (3976, 18280), (4544, 15995), (4570, 15904), (4970, 14624), (5680, 12796), (6398, 11360), (7312, 9940), (7952, 9140)]