20123708

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 40449024

約数和(自身を除く): 20325316

約数列:

[1, 2, 4, 11, 22, 37, 44, 47, 74, 94, 148, 188, 263, 407, 517, 526, 814, 1034, 1052, 1628, 1739, 2068, 2893, 3478, 5786, 6956, 9731, 11572, 12361, 19129, 19462, 24722, 38258, 38924, 49444, 76516, 107041, 135971, 214082, 271942, 428164, 457357, 543884, 914714, 1829428, 5030927, 10061854, 20123708]

約数ペア:

[(1, 20123708), (2, 10061854), (4, 5030927), (11, 1829428), (22, 914714), (37, 543884), (44, 457357), (47, 428164), (74, 271942), (94, 214082), (148, 135971), (188, 107041), (263, 76516), (407, 49444), (517, 38924), (526, 38258), (814, 24722), (1034, 19462), (1052, 19129), (1628, 12361), (1739, 11572), (2068, 9731), (2893, 6956), (3478, 5786)]