20538891520

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{53309}}^1$

素因数の和:53380

約数の個数: 144

約数和(自身を含む): 57533857920

約数和(自身を除く): 36994966400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 64, 70, 80, 86, 112, 128, 140, 160, 172, 215, 224, 256, 280, 301, 320, 344, 430, 448, 560, 602, 640, 688, 860, 896, 1120, 1204, 1280, 1376, 1505, 1720, 1792, 2240, 2408, 2752, 3010, 3440, 4480, 4816, 5504, 6020, 6880, 8960, 9632, 11008, 12040, 13760, 19264, 24080, 27520, 38528, 48160, 53309, 55040, 77056, 96320, 106618, 192640, 213236, 266545, 373163, 385280, 426472, 533090, 746326, 852944, 1066180, 1492652, 1705888, 1865815, 2132360, 2292287, 2985304, 3411776, 3731630, 4264720, 4584574, 5970608, 6823552, 7463260, 8529440, 9169148, 11461435, 11941216, 13647104, 14926520, 16046009, 17058880, 18338296, 22922870, 23882432, 29853040, 32092018, 34117760, 36676592, 45845740, 47764864, 59706080, 64184036, 68235520, 73353184, 80230045, 91691480, 95529728, 119412160, 128368072, 146706368, 160460090, 183382960, 238824320, 256736144, 293412736, 320920180, 366765920, 477648640, 513472288, 586825472, 641840360, 733531840, 1026944576, 1283680720, 1467063680, 2053889152, 2567361440, 2934127360, 4107778304, 5134722880, 10269445760, 20538891520]

約数ペア:

[(1, 20538891520), (2, 10269445760), (4, 5134722880), (5, 4107778304), (7, 2934127360), (8, 2567361440), (10, 2053889152), (14, 1467063680), (16, 1283680720), (20, 1026944576), (28, 733531840), (32, 641840360), (35, 586825472), (40, 513472288), (43, 477648640), (56, 366765920), (64, 320920180), (70, 293412736), (80, 256736144), (86, 238824320), (112, 183382960), (128, 160460090), (140, 146706368), (160, 128368072), (172, 119412160), (215, 95529728), (224, 91691480), (256, 80230045), (280, 73353184), (301, 68235520), (320, 64184036), (344, 59706080), (430, 47764864), (448, 45845740), (560, 36676592), (602, 34117760), (640, 32092018), (688, 29853040), (860, 23882432), (896, 22922870), (1120, 18338296), (1204, 17058880), (1280, 16046009), (1376, 14926520), (1505, 13647104), (1720, 11941216), (1792, 11461435), (2240, 9169148), (2408, 8529440), (2752, 7463260), (3010, 6823552), (3440, 5970608), (4480, 4584574), (4816, 4264720), (5504, 3731630), (6020, 3411776), (6880, 2985304), (8960, 2292287), (9632, 2132360), (11008, 1865815), (12040, 1705888), (13760, 1492652), (19264, 1066180), (24080, 852944), (27520, 746326), (38528, 533090), (48160, 426472), (53309, 385280), (55040, 373163), (77056, 266545), (96320, 213236), (106618, 192640)]