80784760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:317

約数の個数: 128

約数和(自身を含む): 220631040

約数和(自身を除く): 139846280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 41, 56, 62, 70, 82, 124, 140, 155, 164, 205, 217, 227, 248, 280, 287, 310, 328, 410, 434, 454, 574, 620, 820, 868, 908, 1085, 1135, 1148, 1240, 1271, 1435, 1589, 1640, 1736, 1816, 2170, 2270, 2296, 2542, 2870, 3178, 4340, 4540, 5084, 5740, 6355, 6356, 7037, 7945, 8680, 8897, 9080, 9307, 10168, 11480, 12710, 12712, 14074, 15890, 17794, 18614, 25420, 28148, 31780, 35185, 35588, 37228, 44485, 46535, 49259, 50840, 56296, 63560, 65149, 70370, 71176, 74456, 88970, 93070, 98518, 130298, 140740, 177940, 186140, 197036, 246295, 260596, 281480, 288517, 325745, 355880, 372280, 394072, 492590, 521192, 577034, 651490, 985180, 1154068, 1302980, 1442585, 1970360, 2019619, 2308136, 2605960, 2885170, 4039238, 5770340, 8078476, 10098095, 11540680, 16156952, 20196190, 40392380, 80784760]

約数ペア:

[(1, 80784760), (2, 40392380), (4, 20196190), (5, 16156952), (7, 11540680), (8, 10098095), (10, 8078476), (14, 5770340), (20, 4039238), (28, 2885170), (31, 2605960), (35, 2308136), (40, 2019619), (41, 1970360), (56, 1442585), (62, 1302980), (70, 1154068), (82, 985180), (124, 651490), (140, 577034), (155, 521192), (164, 492590), (205, 394072), (217, 372280), (227, 355880), (248, 325745), (280, 288517), (287, 281480), (310, 260596), (328, 246295), (410, 197036), (434, 186140), (454, 177940), (574, 140740), (620, 130298), (820, 98518), (868, 93070), (908, 88970), (1085, 74456), (1135, 71176), (1148, 70370), (1240, 65149), (1271, 63560), (1435, 56296), (1589, 50840), (1640, 49259), (1736, 46535), (1816, 44485), (2170, 37228), (2270, 35588), (2296, 35185), (2542, 31780), (2870, 28148), (3178, 25420), (4340, 18614), (4540, 17794), (5084, 15890), (5740, 14074), (6355, 12712), (6356, 12710), (7037, 11480), (7945, 10168), (8680, 9307), (8897, 9080)]