80371760

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{101}}^1$

素因数の和:164

約数の個数: 160

約数和(自身を含む): 227664000

約数和(自身を除く): 147292240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 49, 56, 58, 70, 80, 98, 101, 112, 116, 140, 145, 196, 202, 203, 232, 245, 280, 290, 343, 392, 404, 406, 464, 490, 505, 560, 580, 686, 707, 784, 808, 812, 980, 1010, 1015, 1160, 1372, 1414, 1421, 1616, 1624, 1715, 1960, 2020, 2030, 2320, 2744, 2828, 2842, 2929, 3248, 3430, 3535, 3920, 4040, 4060, 4949, 5488, 5656, 5684, 5858, 6860, 7070, 7105, 8080, 8120, 9898, 9947, 11312, 11368, 11716, 13720, 14140, 14210, 14645, 16240, 19796, 19894, 20503, 22736, 23432, 24745, 27440, 28280, 28420, 29290, 34643, 39592, 39788, 41006, 46864, 49490, 49735, 56560, 56840, 58580, 69286, 79184, 79576, 82012, 98980, 99470, 102515, 113680, 117160, 138572, 143521, 159152, 164024, 173215, 197960, 198940, 205030, 234320, 277144, 287042, 328048, 346430, 395920, 397880, 410060, 554288, 574084, 692860, 717605, 795760, 820120, 1004647, 1148168, 1385720, 1435210, 1640240, 2009294, 2296336, 2771440, 2870420, 4018588, 5023235, 5740840, 8037176, 10046470, 11481680, 16074352, 20092940, 40185880, 80371760]

約数ペア:

[(1, 80371760), (2, 40185880), (4, 20092940), (5, 16074352), (7, 11481680), (8, 10046470), (10, 8037176), (14, 5740840), (16, 5023235), (20, 4018588), (28, 2870420), (29, 2771440), (35, 2296336), (40, 2009294), (49, 1640240), (56, 1435210), (58, 1385720), (70, 1148168), (80, 1004647), (98, 820120), (101, 795760), (112, 717605), (116, 692860), (140, 574084), (145, 554288), (196, 410060), (202, 397880), (203, 395920), (232, 346430), (245, 328048), (280, 287042), (290, 277144), (343, 234320), (392, 205030), (404, 198940), (406, 197960), (464, 173215), (490, 164024), (505, 159152), (560, 143521), (580, 138572), (686, 117160), (707, 113680), (784, 102515), (808, 99470), (812, 98980), (980, 82012), (1010, 79576), (1015, 79184), (1160, 69286), (1372, 58580), (1414, 56840), (1421, 56560), (1616, 49735), (1624, 49490), (1715, 46864), (1960, 41006), (2020, 39788), (2030, 39592), (2320, 34643), (2744, 29290), (2828, 28420), (2842, 28280), (2929, 27440), (3248, 24745), (3430, 23432), (3535, 22736), (3920, 20503), (4040, 19894), (4060, 19796), (4949, 16240), (5488, 14645), (5656, 14210), (5684, 14140), (5858, 13720), (6860, 11716), (7070, 11368), (7105, 11312), (8080, 9947), (8120, 9898)]