20172215525

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{20269}}^1$

素因数の和:20355

約数の個数: 72

約数和(自身を含む): 32092112640

約数和(自身を除く): 11919897115

約数列:

[1, 5, 7, 11, 25, 35, 47, 55, 77, 121, 175, 235, 275, 329, 385, 517, 605, 847, 1175, 1645, 1925, 2585, 3025, 3619, 4235, 5687, 8225, 12925, 18095, 20269, 21175, 28435, 39809, 90475, 101345, 141883, 142175, 199045, 222959, 506725, 709415, 952643, 995225, 1114795, 1560713, 2452549, 3547075, 4763215, 5573975, 6668501, 7803565, 10479073, 12262745, 17167843, 23816075, 33342505, 39017825, 52395365, 61313725, 73353511, 85839215, 115269803, 166712525, 261976825, 366767555, 429196075, 576349015, 806888621, 1833837775, 2881745075, 4034443105, 20172215525]

約数ペア:

[(1, 20172215525), (5, 4034443105), (7, 2881745075), (11, 1833837775), (25, 806888621), (35, 576349015), (47, 429196075), (55, 366767555), (77, 261976825), (121, 166712525), (175, 115269803), (235, 85839215), (275, 73353511), (329, 61313725), (385, 52395365), (517, 39017825), (605, 33342505), (847, 23816075), (1175, 17167843), (1645, 12262745), (1925, 10479073), (2585, 7803565), (3025, 6668501), (3619, 5573975), (4235, 4763215), (5687, 3547075), (8225, 2452549), (12925, 1560713), (18095, 1114795), (20269, 995225), (21175, 952643), (28435, 709415), (39809, 506725), (90475, 222959), (101345, 199045), (141883, 142175)]