81163160

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1229}}^1$

素因数の和:1380

約数の個数: 64

約数和(自身を含む): 198374400

約数和(自身を除く): 117211240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 127, 130, 254, 260, 508, 520, 635, 1016, 1229, 1270, 1651, 2458, 2540, 3302, 4916, 5080, 6145, 6604, 8255, 9832, 12290, 13208, 15977, 16510, 24580, 31954, 33020, 49160, 63908, 66040, 79885, 127816, 156083, 159770, 312166, 319540, 624332, 639080, 780415, 1248664, 1560830, 2029079, 3121660, 4058158, 6243320, 8116316, 10145395, 16232632, 20290790, 40581580, 81163160]

約数ペア:

[(1, 81163160), (2, 40581580), (4, 20290790), (5, 16232632), (8, 10145395), (10, 8116316), (13, 6243320), (20, 4058158), (26, 3121660), (40, 2029079), (52, 1560830), (65, 1248664), (104, 780415), (127, 639080), (130, 624332), (254, 319540), (260, 312166), (508, 159770), (520, 156083), (635, 127816), (1016, 79885), (1229, 66040), (1270, 63908), (1651, 49160), (2458, 33020), (2540, 31954), (3302, 24580), (4916, 16510), (5080, 15977), (6145, 13208), (6604, 12290), (8255, 9832)]