638342656

素因数分解:

$2^9\times 7^1\times {\mathrm{17}}^1\times {\mathrm{10477}}^1$

素因数の和:10519

約数の個数: 80

約数和(自身を含む): 1543535136

約数和(自身を除く): 905192480

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 64, 68, 112, 119, 128, 136, 224, 238, 256, 272, 448, 476, 512, 544, 896, 952, 1088, 1792, 1904, 2176, 3584, 3808, 4352, 7616, 8704, 10477, 15232, 20954, 30464, 41908, 60928, 73339, 83816, 146678, 167632, 178109, 293356, 335264, 356218, 586712, 670528, 712436, 1173424, 1246763, 1341056, 1424872, 2346848, 2493526, 2682112, 2849744, 4693696, 4987052, 5364224, 5699488, 9387392, 9974104, 11398976, 18774784, 19948208, 22797952, 37549568, 39896416, 45595904, 79792832, 91191808, 159585664, 319171328, 638342656]

約数ペア:

[(1, 638342656), (2, 319171328), (4, 159585664), (7, 91191808), (8, 79792832), (14, 45595904), (16, 39896416), (17, 37549568), (28, 22797952), (32, 19948208), (34, 18774784), (56, 11398976), (64, 9974104), (68, 9387392), (112, 5699488), (119, 5364224), (128, 4987052), (136, 4693696), (224, 2849744), (238, 2682112), (256, 2493526), (272, 2346848), (448, 1424872), (476, 1341056), (512, 1246763), (544, 1173424), (896, 712436), (952, 670528), (1088, 586712), (1792, 356218), (1904, 335264), (2176, 293356), (3584, 178109), (3808, 167632), (4352, 146678), (7616, 83816), (8704, 73339), (10477, 60928), (15232, 41908), (20954, 30464)]