278471680

素因数分解:

$2^{10}\times 5^1\times {\mathrm{137}}^1\times {\mathrm{397}}^1$

素因数の和:559

約数の個数: 88

約数和(自身を含む): 674576568

約数和(自身を除く): 396104888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 137, 160, 256, 274, 320, 397, 512, 548, 640, 685, 794, 1024, 1096, 1280, 1370, 1588, 1985, 2192, 2560, 2740, 3176, 3970, 4384, 5120, 5480, 6352, 7940, 8768, 10960, 12704, 15880, 17536, 21920, 25408, 31760, 35072, 43840, 50816, 54389, 63520, 70144, 87680, 101632, 108778, 127040, 140288, 175360, 203264, 217556, 254080, 271945, 350720, 406528, 435112, 508160, 543890, 701440, 870224, 1016320, 1087780, 1740448, 2032640, 2175560, 3480896, 4351120, 6961792, 8702240, 13923584, 17404480, 27847168, 34808960, 55694336, 69617920, 139235840, 278471680]

約数ペア:

[(1, 278471680), (2, 139235840), (4, 69617920), (5, 55694336), (8, 34808960), (10, 27847168), (16, 17404480), (20, 13923584), (32, 8702240), (40, 6961792), (64, 4351120), (80, 3480896), (128, 2175560), (137, 2032640), (160, 1740448), (256, 1087780), (274, 1016320), (320, 870224), (397, 701440), (512, 543890), (548, 508160), (640, 435112), (685, 406528), (794, 350720), (1024, 271945), (1096, 254080), (1280, 217556), (1370, 203264), (1588, 175360), (1985, 140288), (2192, 127040), (2560, 108778), (2740, 101632), (3176, 87680), (3970, 70144), (4384, 63520), (5120, 54389), (5480, 50816), (6352, 43840), (7940, 35072), (8768, 31760), (10960, 25408), (12704, 21920), (15880, 17536)]