320143615

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 444709440

約数和(自身を除く): 124565825

約数列:

[1, 5, 11, 29, 55, 71, 121, 145, 257, 319, 355, 605, 781, 1285, 1595, 2059, 2827, 3509, 3905, 7453, 8591, 10295, 14135, 17545, 18247, 22649, 31097, 37265, 42955, 81983, 91235, 113245, 155485, 200717, 249139, 409915, 529163, 901813, 1003585, 1245695, 2207887, 2645815, 4509065, 5820793, 11039435, 29103965, 64028723, 320143615]

約数ペア:

[(1, 320143615), (5, 64028723), (11, 29103965), (29, 11039435), (55, 5820793), (71, 4509065), (121, 2645815), (145, 2207887), (257, 1245695), (319, 1003585), (355, 901813), (605, 529163), (781, 409915), (1285, 249139), (1595, 200717), (2059, 155485), (2827, 113245), (3509, 91235), (3905, 81983), (7453, 42955), (8591, 37265), (10295, 31097), (14135, 22649), (17545, 18247)]