20478352

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:152

約数の個数: 80

約数和(自身を含む): 44997120

約数和(自身を除く): 24518768

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 41, 53, 62, 76, 82, 106, 124, 152, 164, 212, 248, 304, 328, 424, 496, 589, 656, 779, 848, 1007, 1178, 1271, 1558, 1643, 2014, 2173, 2356, 2542, 3116, 3286, 4028, 4346, 4712, 5084, 6232, 6572, 8056, 8692, 9424, 10168, 12464, 13144, 16112, 17384, 20336, 24149, 26288, 31217, 34768, 41287, 48298, 62434, 67363, 82574, 96596, 124868, 134726, 165148, 193192, 249736, 269452, 330296, 386384, 499472, 538904, 660592, 1077808, 1279897, 2559794, 5119588, 10239176, 20478352]

約数ペア:

[(1, 20478352), (2, 10239176), (4, 5119588), (8, 2559794), (16, 1279897), (19, 1077808), (31, 660592), (38, 538904), (41, 499472), (53, 386384), (62, 330296), (76, 269452), (82, 249736), (106, 193192), (124, 165148), (152, 134726), (164, 124868), (212, 96596), (248, 82574), (304, 67363), (328, 62434), (424, 48298), (496, 41287), (589, 34768), (656, 31217), (779, 26288), (848, 24149), (1007, 20336), (1178, 17384), (1271, 16112), (1558, 13144), (1643, 12464), (2014, 10168), (2173, 9424), (2356, 8692), (2542, 8056), (3116, 6572), (3286, 6232), (4028, 5084), (4346, 4712)]