20683808

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1$

素因数の和:369

約数の個数: 48

約数和(自身を含む): 43001280

約数和(自身を除く): 22317472

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 157, 179, 184, 314, 358, 368, 628, 716, 736, 1256, 1432, 2512, 2864, 3611, 4117, 5024, 5728, 7222, 8234, 14444, 16468, 28103, 28888, 32936, 56206, 57776, 65872, 112412, 115552, 131744, 224824, 449648, 646369, 899296, 1292738, 2585476, 5170952, 10341904, 20683808]

約数ペア:

[(1, 20683808), (2, 10341904), (4, 5170952), (8, 2585476), (16, 1292738), (23, 899296), (32, 646369), (46, 449648), (92, 224824), (157, 131744), (179, 115552), (184, 112412), (314, 65872), (358, 57776), (368, 56206), (628, 32936), (716, 28888), (736, 28103), (1256, 16468), (1432, 14444), (2512, 8234), (2864, 7222), (3611, 5728), (4117, 5024)]