1990234624

素因数分解:

$2^9\times 7^1\times {\mathrm{73}}^1\times {\mathrm{7607}}^1$

素因数の和:7705

約数の個数: 80

約数和(自身を含む): 4607526528

約数和(自身を除く): 2617291904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 73, 112, 128, 146, 224, 256, 292, 448, 511, 512, 584, 896, 1022, 1168, 1792, 2044, 2336, 3584, 4088, 4672, 7607, 8176, 9344, 15214, 16352, 18688, 30428, 32704, 37376, 53249, 60856, 65408, 106498, 121712, 130816, 212996, 243424, 261632, 425992, 486848, 555311, 851984, 973696, 1110622, 1703968, 1947392, 2221244, 3407936, 3887177, 3894784, 4442488, 6815872, 7774354, 8884976, 13631744, 15548708, 17769952, 27263488, 31097416, 35539904, 62194832, 71079808, 124389664, 142159616, 248779328, 284319232, 497558656, 995117312, 1990234624]

約数ペア:

[(1, 1990234624), (2, 995117312), (4, 497558656), (7, 284319232), (8, 248779328), (14, 142159616), (16, 124389664), (28, 71079808), (32, 62194832), (56, 35539904), (64, 31097416), (73, 27263488), (112, 17769952), (128, 15548708), (146, 13631744), (224, 8884976), (256, 7774354), (292, 6815872), (448, 4442488), (511, 3894784), (512, 3887177), (584, 3407936), (896, 2221244), (1022, 1947392), (1168, 1703968), (1792, 1110622), (2044, 973696), (2336, 851984), (3584, 555311), (4088, 486848), (4672, 425992), (7607, 261632), (8176, 243424), (9344, 212996), (15214, 130816), (16352, 121712), (18688, 106498), (30428, 65408), (32704, 60856), (37376, 53249)]