81337600

素因数分解:

$2^8\times 5^2\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:276

約数の個数: 108

約数和(自身を含む): 205299360

約数和(自身を除く): 123961760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 71, 80, 100, 128, 142, 160, 179, 200, 256, 284, 320, 355, 358, 400, 568, 640, 710, 716, 800, 895, 1136, 1280, 1420, 1432, 1600, 1775, 1790, 2272, 2840, 2864, 3200, 3550, 3580, 4475, 4544, 5680, 5728, 6400, 7100, 7160, 8950, 9088, 11360, 11456, 12709, 14200, 14320, 17900, 18176, 22720, 22912, 25418, 28400, 28640, 35800, 45440, 45824, 50836, 56800, 57280, 63545, 71600, 90880, 101672, 113600, 114560, 127090, 143200, 203344, 227200, 229120, 254180, 286400, 317725, 406688, 454400, 508360, 572800, 635450, 813376, 1016720, 1145600, 1270900, 1626752, 2033440, 2541800, 3253504, 4066880, 5083600, 8133760, 10167200, 16267520, 20334400, 40668800, 81337600]

約数ペア:

[(1, 81337600), (2, 40668800), (4, 20334400), (5, 16267520), (8, 10167200), (10, 8133760), (16, 5083600), (20, 4066880), (25, 3253504), (32, 2541800), (40, 2033440), (50, 1626752), (64, 1270900), (71, 1145600), (80, 1016720), (100, 813376), (128, 635450), (142, 572800), (160, 508360), (179, 454400), (200, 406688), (256, 317725), (284, 286400), (320, 254180), (355, 229120), (358, 227200), (400, 203344), (568, 143200), (640, 127090), (710, 114560), (716, 113600), (800, 101672), (895, 90880), (1136, 71600), (1280, 63545), (1420, 57280), (1432, 56800), (1600, 50836), (1775, 45824), (1790, 45440), (2272, 35800), (2840, 28640), (2864, 28400), (3200, 25418), (3550, 22912), (3580, 22720), (4475, 18176), (4544, 17900), (5680, 14320), (5728, 14200), (6400, 12709), (7100, 11456), (7160, 11360), (8950, 9088)]