81972800

素因数分解:

$2^6\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{563}}^1$

素因数の和:605

約数の個数: 168

約数和(自身を含む): 248692416

約数和(自身を除く): 166719616

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 32, 35, 40, 50, 52, 56, 64, 65, 70, 80, 91, 100, 104, 112, 130, 140, 160, 175, 182, 200, 208, 224, 260, 280, 320, 325, 350, 364, 400, 416, 448, 455, 520, 560, 563, 650, 700, 728, 800, 832, 910, 1040, 1120, 1126, 1300, 1400, 1456, 1600, 1820, 2080, 2240, 2252, 2275, 2600, 2800, 2815, 2912, 3640, 3941, 4160, 4504, 4550, 5200, 5600, 5630, 5824, 7280, 7319, 7882, 9008, 9100, 10400, 11200, 11260, 14075, 14560, 14638, 15764, 18016, 18200, 19705, 20800, 22520, 28150, 29120, 29276, 31528, 36032, 36400, 36595, 39410, 45040, 51233, 56300, 58552, 63056, 72800, 73190, 78820, 90080, 98525, 102466, 112600, 117104, 126112, 145600, 146380, 157640, 180160, 182975, 197050, 204932, 225200, 234208, 252224, 256165, 292760, 315280, 365950, 394100, 409864, 450400, 468416, 512330, 585520, 630560, 731900, 788200, 819728, 900800, 1024660, 1171040, 1261120, 1280825, 1463800, 1576400, 1639456, 2049320, 2342080, 2561650, 2927600, 3152800, 3278912, 4098640, 5123300, 5855200, 6305600, 8197280, 10246600, 11710400, 16394560, 20493200, 40986400, 81972800]

約数ペア:

[(1, 81972800), (2, 40986400), (4, 20493200), (5, 16394560), (7, 11710400), (8, 10246600), (10, 8197280), (13, 6305600), (14, 5855200), (16, 5123300), (20, 4098640), (25, 3278912), (26, 3152800), (28, 2927600), (32, 2561650), (35, 2342080), (40, 2049320), (50, 1639456), (52, 1576400), (56, 1463800), (64, 1280825), (65, 1261120), (70, 1171040), (80, 1024660), (91, 900800), (100, 819728), (104, 788200), (112, 731900), (130, 630560), (140, 585520), (160, 512330), (175, 468416), (182, 450400), (200, 409864), (208, 394100), (224, 365950), (260, 315280), (280, 292760), (320, 256165), (325, 252224), (350, 234208), (364, 225200), (400, 204932), (416, 197050), (448, 182975), (455, 180160), (520, 157640), (560, 146380), (563, 145600), (650, 126112), (700, 117104), (728, 112600), (800, 102466), (832, 98525), (910, 90080), (1040, 78820), (1120, 73190), (1126, 72800), (1300, 63056), (1400, 58552), (1456, 56300), (1600, 51233), (1820, 45040), (2080, 39410), (2240, 36595), (2252, 36400), (2275, 36032), (2600, 31528), (2800, 29276), (2815, 29120), (2912, 28150), (3640, 22520), (3941, 20800), (4160, 19705), (4504, 18200), (4550, 18016), (5200, 15764), (5600, 14638), (5630, 14560), (5824, 14075), (7280, 11260), (7319, 11200), (7882, 10400), (9008, 9100)]