81505760

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1193}}^1$

素因数の和:1276

約数の個数: 96

約数和(自身を含む): 223860672

約数和(自身を除く): 142354912

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 61, 70, 80, 112, 122, 140, 160, 224, 244, 280, 305, 427, 488, 560, 610, 854, 976, 1120, 1193, 1220, 1708, 1952, 2135, 2386, 2440, 3416, 4270, 4772, 4880, 5965, 6832, 8351, 8540, 9544, 9760, 11930, 13664, 16702, 17080, 19088, 23860, 33404, 34160, 38176, 41755, 47720, 66808, 68320, 72773, 83510, 95440, 133616, 145546, 167020, 190880, 267232, 291092, 334040, 363865, 509411, 582184, 668080, 727730, 1018822, 1164368, 1336160, 1455460, 2037644, 2328736, 2547055, 2910920, 4075288, 5094110, 5821840, 8150576, 10188220, 11643680, 16301152, 20376440, 40752880, 81505760]

約数ペア:

[(1, 81505760), (2, 40752880), (4, 20376440), (5, 16301152), (7, 11643680), (8, 10188220), (10, 8150576), (14, 5821840), (16, 5094110), (20, 4075288), (28, 2910920), (32, 2547055), (35, 2328736), (40, 2037644), (56, 1455460), (61, 1336160), (70, 1164368), (80, 1018822), (112, 727730), (122, 668080), (140, 582184), (160, 509411), (224, 363865), (244, 334040), (280, 291092), (305, 267232), (427, 190880), (488, 167020), (560, 145546), (610, 133616), (854, 95440), (976, 83510), (1120, 72773), (1193, 68320), (1220, 66808), (1708, 47720), (1952, 41755), (2135, 38176), (2386, 34160), (2440, 33404), (3416, 23860), (4270, 19088), (4772, 17080), (4880, 16702), (5965, 13664), (6832, 11930), (8351, 9760), (8540, 9544)]