20189419775

素因数分解:

$5^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{232129}}^1$

素因数の和:232224

約数の個数: 36

約数和(自身を含む): 29532507120

約数和(自身を除く): 9343087345

約数列:

[1, 5, 7, 25, 35, 49, 71, 175, 245, 355, 497, 1225, 1775, 2485, 3479, 12425, 17395, 86975, 232129, 1160645, 1624903, 5803225, 8124515, 11374321, 16481159, 40622575, 56871605, 82405795, 115368113, 284358025, 412028975, 576840565, 807576791, 2884202825, 4037883955, 20189419775]

約数ペア:

[(1, 20189419775), (5, 4037883955), (7, 2884202825), (25, 807576791), (35, 576840565), (49, 412028975), (71, 284358025), (175, 115368113), (245, 82405795), (355, 56871605), (497, 40622575), (1225, 16481159), (1775, 11374321), (2485, 8124515), (3479, 5803225), (12425, 1624903), (17395, 1160645), (86975, 232129)]