2131408640

素因数分解:

$2^8\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{499}}^1$

素因数の和:638

約数の個数: 144

約数和(自身を含む): 5298048000

約数和(自身を除く): 3166639360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 71, 80, 94, 128, 142, 160, 188, 235, 256, 284, 320, 355, 376, 470, 499, 568, 640, 710, 752, 940, 998, 1136, 1280, 1420, 1504, 1880, 1996, 2272, 2495, 2840, 3008, 3337, 3760, 3992, 4544, 4990, 5680, 6016, 6674, 7520, 7984, 9088, 9980, 11360, 12032, 13348, 15040, 15968, 16685, 18176, 19960, 22720, 23453, 26696, 30080, 31936, 33370, 35429, 39920, 45440, 46906, 53392, 60160, 63872, 66740, 70858, 79840, 90880, 93812, 106784, 117265, 127744, 133480, 141716, 159680, 177145, 187624, 213568, 234530, 266960, 283432, 319360, 354290, 375248, 427136, 469060, 533920, 566864, 638720, 708580, 750496, 854272, 938120, 1067840, 1133728, 1417160, 1500992, 1665163, 1876240, 2135680, 2267456, 2834320, 3001984, 3330326, 3752480, 4271360, 4534912, 5668640, 6003968, 6660652, 7504960, 8325815, 9069824, 11337280, 13321304, 15009920, 16651630, 22674560, 26642608, 30019840, 33303260, 45349120, 53285216, 66606520, 106570432, 133213040, 213140864, 266426080, 426281728, 532852160, 1065704320, 2131408640]

約数ペア:

[(1, 2131408640), (2, 1065704320), (4, 532852160), (5, 426281728), (8, 266426080), (10, 213140864), (16, 133213040), (20, 106570432), (32, 66606520), (40, 53285216), (47, 45349120), (64, 33303260), (71, 30019840), (80, 26642608), (94, 22674560), (128, 16651630), (142, 15009920), (160, 13321304), (188, 11337280), (235, 9069824), (256, 8325815), (284, 7504960), (320, 6660652), (355, 6003968), (376, 5668640), (470, 4534912), (499, 4271360), (568, 3752480), (640, 3330326), (710, 3001984), (752, 2834320), (940, 2267456), (998, 2135680), (1136, 1876240), (1280, 1665163), (1420, 1500992), (1504, 1417160), (1880, 1133728), (1996, 1067840), (2272, 938120), (2495, 854272), (2840, 750496), (3008, 708580), (3337, 638720), (3760, 566864), (3992, 533920), (4544, 469060), (4990, 427136), (5680, 375248), (6016, 354290), (6674, 319360), (7520, 283432), (7984, 266960), (9088, 234530), (9980, 213568), (11360, 187624), (12032, 177145), (13348, 159680), (15040, 141716), (15968, 133480), (16685, 127744), (18176, 117265), (19960, 106784), (22720, 93812), (23453, 90880), (26696, 79840), (30080, 70858), (31936, 66740), (33370, 63872), (35429, 60160), (39920, 53392), (45440, 46906)]