8165000

素因数分解:

$2^3\times 5^4\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:120

約数の個数: 80

約数和(自身を含む): 20243520

約数和(自身を除く): 12078520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 71, 92, 100, 115, 125, 142, 184, 200, 230, 250, 284, 355, 460, 500, 568, 575, 625, 710, 920, 1000, 1150, 1250, 1420, 1633, 1775, 2300, 2500, 2840, 2875, 3266, 3550, 4600, 5000, 5750, 6532, 7100, 8165, 8875, 11500, 13064, 14200, 14375, 16330, 17750, 23000, 28750, 32660, 35500, 40825, 44375, 57500, 65320, 71000, 81650, 88750, 115000, 163300, 177500, 204125, 326600, 355000, 408250, 816500, 1020625, 1633000, 2041250, 4082500, 8165000]

約数ペア:

[(1, 8165000), (2, 4082500), (4, 2041250), (5, 1633000), (8, 1020625), (10, 816500), (20, 408250), (23, 355000), (25, 326600), (40, 204125), (46, 177500), (50, 163300), (71, 115000), (92, 88750), (100, 81650), (115, 71000), (125, 65320), (142, 57500), (184, 44375), (200, 40825), (230, 35500), (250, 32660), (284, 28750), (355, 23000), (460, 17750), (500, 16330), (568, 14375), (575, 14200), (625, 13064), (710, 11500), (920, 8875), (1000, 8165), (1150, 7100), (1250, 6532), (1420, 5750), (1633, 5000), (1775, 4600), (2300, 3550), (2500, 3266), (2840, 2875)]