1985385920

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{997}}^1$

素因数の和:1155

約数の個数: 168

約数和(自身を含む): 5548432896

約数和(自身を除く): 3563046976

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 127, 140, 160, 196, 224, 245, 254, 280, 320, 392, 448, 490, 508, 560, 635, 784, 889, 980, 997, 1016, 1120, 1270, 1568, 1778, 1960, 1994, 2032, 2240, 2540, 3136, 3556, 3920, 3988, 4064, 4445, 4985, 5080, 6223, 6979, 7112, 7840, 7976, 8128, 8890, 9970, 10160, 12446, 13958, 14224, 15680, 15952, 17780, 19940, 20320, 24892, 27916, 28448, 31115, 31904, 34895, 35560, 39880, 40640, 48853, 49784, 55832, 56896, 62230, 63808, 69790, 71120, 79760, 97706, 99568, 111664, 124460, 126619, 139580, 142240, 159520, 195412, 199136, 223328, 244265, 248920, 253238, 279160, 284480, 319040, 390824, 398272, 446656, 488530, 497840, 506476, 558320, 633095, 781648, 886333, 977060, 995680, 1012952, 1116640, 1266190, 1563296, 1772666, 1954120, 1991360, 2025904, 2233280, 2532380, 3126592, 3545332, 3908240, 4051808, 4431665, 5064760, 6204331, 7090664, 7816480, 8103616, 8863330, 10129520, 12408662, 14181328, 15632960, 17726660, 20259040, 24817324, 28362656, 31021655, 35453320, 40518080, 49634648, 56725312, 62043310, 70906640, 99269296, 124086620, 141813280, 198538592, 248173240, 283626560, 397077184, 496346480, 992692960, 1985385920]

約数ペア:

[(1, 1985385920), (2, 992692960), (4, 496346480), (5, 397077184), (7, 283626560), (8, 248173240), (10, 198538592), (14, 141813280), (16, 124086620), (20, 99269296), (28, 70906640), (32, 62043310), (35, 56725312), (40, 49634648), (49, 40518080), (56, 35453320), (64, 31021655), (70, 28362656), (80, 24817324), (98, 20259040), (112, 17726660), (127, 15632960), (140, 14181328), (160, 12408662), (196, 10129520), (224, 8863330), (245, 8103616), (254, 7816480), (280, 7090664), (320, 6204331), (392, 5064760), (448, 4431665), (490, 4051808), (508, 3908240), (560, 3545332), (635, 3126592), (784, 2532380), (889, 2233280), (980, 2025904), (997, 1991360), (1016, 1954120), (1120, 1772666), (1270, 1563296), (1568, 1266190), (1778, 1116640), (1960, 1012952), (1994, 995680), (2032, 977060), (2240, 886333), (2540, 781648), (3136, 633095), (3556, 558320), (3920, 506476), (3988, 497840), (4064, 488530), (4445, 446656), (4985, 398272), (5080, 390824), (6223, 319040), (6979, 284480), (7112, 279160), (7840, 253238), (7976, 248920), (8128, 244265), (8890, 223328), (9970, 199136), (10160, 195412), (12446, 159520), (13958, 142240), (14224, 139580), (15680, 126619), (15952, 124460), (17780, 111664), (19940, 99568), (20320, 97706), (24892, 79760), (27916, 71120), (28448, 69790), (31115, 63808), (31904, 62230), (34895, 56896), (35560, 55832), (39880, 49784), (40640, 48853)]