20334400

素因数分解:

$2^6\times 5^2\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:272

約数の個数: 84

約数和(自身を含む): 51023520

約数和(自身を除く): 30689120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 71, 80, 100, 142, 160, 179, 200, 284, 320, 355, 358, 400, 568, 710, 716, 800, 895, 1136, 1420, 1432, 1600, 1775, 1790, 2272, 2840, 2864, 3550, 3580, 4475, 4544, 5680, 5728, 7100, 7160, 8950, 11360, 11456, 12709, 14200, 14320, 17900, 22720, 25418, 28400, 28640, 35800, 50836, 56800, 57280, 63545, 71600, 101672, 113600, 127090, 143200, 203344, 254180, 286400, 317725, 406688, 508360, 635450, 813376, 1016720, 1270900, 2033440, 2541800, 4066880, 5083600, 10167200, 20334400]

約数ペア:

[(1, 20334400), (2, 10167200), (4, 5083600), (5, 4066880), (8, 2541800), (10, 2033440), (16, 1270900), (20, 1016720), (25, 813376), (32, 635450), (40, 508360), (50, 406688), (64, 317725), (71, 286400), (80, 254180), (100, 203344), (142, 143200), (160, 127090), (179, 113600), (200, 101672), (284, 71600), (320, 63545), (355, 57280), (358, 56800), (400, 50836), (568, 35800), (710, 28640), (716, 28400), (800, 25418), (895, 22720), (1136, 17900), (1420, 14320), (1432, 14200), (1600, 12709), (1775, 11456), (1790, 11360), (2272, 8950), (2840, 7160), (2864, 7100), (3550, 5728), (3580, 5680), (4475, 4544)]