18781952

素因数分解:

$2^8\times 7^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:293

約数の個数: 72

約数和(自身を含む): 43954176

約数和(自身を除く): 25172224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 56, 64, 94, 112, 128, 188, 223, 224, 256, 329, 376, 446, 448, 658, 752, 892, 896, 1316, 1504, 1561, 1784, 1792, 2632, 3008, 3122, 3568, 5264, 6016, 6244, 7136, 10481, 10528, 12032, 12488, 14272, 20962, 21056, 24976, 28544, 41924, 42112, 49952, 57088, 73367, 83848, 84224, 99904, 146734, 167696, 199808, 293468, 335392, 399616, 586936, 670784, 1173872, 1341568, 2347744, 2683136, 4695488, 9390976, 18781952]

約数ペア:

[(1, 18781952), (2, 9390976), (4, 4695488), (7, 2683136), (8, 2347744), (14, 1341568), (16, 1173872), (28, 670784), (32, 586936), (47, 399616), (56, 335392), (64, 293468), (94, 199808), (112, 167696), (128, 146734), (188, 99904), (223, 84224), (224, 83848), (256, 73367), (329, 57088), (376, 49952), (446, 42112), (448, 41924), (658, 28544), (752, 24976), (892, 21056), (896, 20962), (1316, 14272), (1504, 12488), (1561, 12032), (1784, 10528), (1792, 10481), (2632, 7136), (3008, 6244), (3122, 6016), (3568, 5264)]