64414280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:271

約数の個数: 128

約数和(自身を含む): 176117760

約数和(自身を除く): 111703480

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, 181, 205, 217, 248, 280, 287, 310, 328, 362, 410, 434, 574, 620, 724, 820, 868, 905, 1085, 1148, 1240, 1267, 1271, 1435, 1448, 1640, 1736, 1810, 2170, 2296, 2534, 2542, 2870, 3620, 4340, 5068, 5084, 5611, 5740, 6335, 6355, 7240, 7421, 8680, 8897, 10136, 10168, 11222, 11480, 12670, 12710, 14842, 17794, 22444, 25340, 25420, 28055, 29684, 35588, 37105, 39277, 44485, 44888, 50680, 50840, 51947, 56110, 59368, 71176, 74210, 78554, 88970, 103894, 112220, 148420, 157108, 177940, 196385, 207788, 224440, 230051, 259735, 296840, 314216, 355880, 392770, 415576, 460102, 519470, 785540, 920204, 1038940, 1150255, 1571080, 1610357, 1840408, 2077880, 2300510, 3220714, 4601020, 6441428, 8051785, 9202040, 12882856, 16103570, 32207140, 64414280]

約数ペア:

[(1, 64414280), (2, 32207140), (4, 16103570), (5, 12882856), (7, 9202040), (8, 8051785), (10, 6441428), (14, 4601020), (20, 3220714), (28, 2300510), (31, 2077880), (35, 1840408), (40, 1610357), (41, 1571080), (56, 1150255), (62, 1038940), (70, 920204), (82, 785540), (124, 519470), (140, 460102), (155, 415576), (164, 392770), (181, 355880), (205, 314216), (217, 296840), (248, 259735), (280, 230051), (287, 224440), (310, 207788), (328, 196385), (362, 177940), (410, 157108), (434, 148420), (574, 112220), (620, 103894), (724, 88970), (820, 78554), (868, 74210), (905, 71176), (1085, 59368), (1148, 56110), (1240, 51947), (1267, 50840), (1271, 50680), (1435, 44888), (1448, 44485), (1640, 39277), (1736, 37105), (1810, 35588), (2170, 29684), (2296, 28055), (2534, 25420), (2542, 25340), (2870, 22444), (3620, 17794), (4340, 14842), (5068, 12710), (5084, 12670), (5611, 11480), (5740, 11222), (6335, 10168), (6355, 10136), (7240, 8897), (7421, 8680)]