20326448

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{617}}^1$

素因数の和:725

約数の個数: 40

約数和(自身を含む): 41381280

約数和(自身を除く): 21054832

約数列:

[1, 2, 4, 8, 16, 29, 58, 71, 116, 142, 232, 284, 464, 568, 617, 1136, 1234, 2059, 2468, 4118, 4936, 8236, 9872, 16472, 17893, 32944, 35786, 43807, 71572, 87614, 143144, 175228, 286288, 350456, 700912, 1270403, 2540806, 5081612, 10163224, 20326448]

約数ペア:

[(1, 20326448), (2, 10163224), (4, 5081612), (8, 2540806), (16, 1270403), (29, 700912), (58, 350456), (71, 286288), (116, 175228), (142, 143144), (232, 87614), (284, 71572), (464, 43807), (568, 35786), (617, 32944), (1136, 17893), (1234, 16472), (2059, 9872), (2468, 8236), (4118, 4936)]