20665792

素因数分解:

$2^6\times 7^1\times {\mathrm{163}}^1\times {\mathrm{283}}^1$

素因数の和:465

約数の個数: 56

約数和(自身を含む): 47321216

約数和(自身を除く): 26655424

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 163, 224, 283, 326, 448, 566, 652, 1132, 1141, 1304, 1981, 2264, 2282, 2608, 3962, 4528, 4564, 5216, 7924, 9056, 9128, 10432, 15848, 18112, 18256, 31696, 36512, 46129, 63392, 73024, 92258, 126784, 184516, 322903, 369032, 645806, 738064, 1291612, 1476128, 2583224, 2952256, 5166448, 10332896, 20665792]

約数ペア:

[(1, 20665792), (2, 10332896), (4, 5166448), (7, 2952256), (8, 2583224), (14, 1476128), (16, 1291612), (28, 738064), (32, 645806), (56, 369032), (64, 322903), (112, 184516), (163, 126784), (224, 92258), (283, 73024), (326, 63392), (448, 46129), (566, 36512), (652, 31696), (1132, 18256), (1141, 18112), (1304, 15848), (1981, 10432), (2264, 9128), (2282, 9056), (2608, 7924), (3962, 5216), (4528, 4564)]