20086778075

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{787}}^1\times {\mathrm{863}}^1$

素因数の和:1693

約数の個数: 72

約数和(自身を含む): 30898879488

約数和(自身を除く): 10812101413

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 169, 175, 325, 455, 787, 845, 863, 1183, 2275, 3935, 4225, 4315, 5509, 5915, 6041, 10231, 11219, 19675, 21575, 27545, 29575, 30205, 51155, 56095, 71617, 78533, 133003, 137725, 145847, 151025, 255775, 280475, 358085, 392665, 665015, 679181, 729235, 931021, 1020929, 1790425, 1963325, 3325075, 3395905, 3646175, 4655105, 4754267, 5104645, 8829353, 16979525, 23275525, 23771335, 25523225, 44146765, 61805471, 114781589, 118856675, 220733825, 309027355, 573907945, 803471123, 1545136775, 2869539725, 4017355615, 20086778075]

約数ペア:

[(1, 20086778075), (5, 4017355615), (7, 2869539725), (13, 1545136775), (25, 803471123), (35, 573907945), (65, 309027355), (91, 220733825), (169, 118856675), (175, 114781589), (325, 61805471), (455, 44146765), (787, 25523225), (845, 23771335), (863, 23275525), (1183, 16979525), (2275, 8829353), (3935, 5104645), (4225, 4754267), (4315, 4655105), (5509, 3646175), (5915, 3395905), (6041, 3325075), (10231, 1963325), (11219, 1790425), (19675, 1020929), (21575, 931021), (27545, 729235), (29575, 679181), (30205, 665015), (51155, 392665), (56095, 358085), (71617, 280475), (78533, 255775), (133003, 151025), (137725, 145847)]