20166085625

素因数分解:

$5^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{64921}}^1$

素因数の和:65019

約数の個数: 40

約数和(自身を含む): 29205551232

約数和(自身を除く): 9039465607

約数列:

[1, 5, 7, 25, 35, 71, 125, 175, 355, 497, 625, 875, 1775, 2485, 4375, 8875, 12425, 44375, 62125, 64921, 310625, 324605, 454447, 1623025, 2272235, 4609391, 8115125, 11361175, 23046955, 32265737, 40575625, 56805875, 115234775, 161328685, 284029375, 576173875, 806643425, 2880869375, 4033217125, 20166085625]

約数ペア:

[(1, 20166085625), (5, 4033217125), (7, 2880869375), (25, 806643425), (35, 576173875), (71, 284029375), (125, 161328685), (175, 115234775), (355, 56805875), (497, 40575625), (625, 32265737), (875, 23046955), (1775, 11361175), (2485, 8115125), (4375, 4609391), (8875, 2272235), (12425, 1623025), (44375, 454447), (62125, 324605), (64921, 310625)]