28390770

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1481}}^1$

素因数の和:1568

約数の個数: 64

約数和(自身を含む): 76826880

約数和(自身を除く): 48436110

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 71, 90, 135, 142, 213, 270, 355, 426, 639, 710, 1065, 1278, 1481, 1917, 2130, 2962, 3195, 3834, 4443, 6390, 7405, 8886, 9585, 13329, 14810, 19170, 22215, 26658, 39987, 44430, 66645, 79974, 105151, 133290, 199935, 210302, 315453, 399870, 525755, 630906, 946359, 1051510, 1577265, 1892718, 2839077, 3154530, 4731795, 5678154, 9463590, 14195385, 28390770]

約数ペア:

[(1, 28390770), (2, 14195385), (3, 9463590), (5, 5678154), (6, 4731795), (9, 3154530), (10, 2839077), (15, 1892718), (18, 1577265), (27, 1051510), (30, 946359), (45, 630906), (54, 525755), (71, 399870), (90, 315453), (135, 210302), (142, 199935), (213, 133290), (270, 105151), (355, 79974), (426, 66645), (639, 44430), (710, 39987), (1065, 26658), (1278, 22215), (1481, 19170), (1917, 14810), (2130, 13329), (2962, 9585), (3195, 8886), (3834, 7405), (4443, 6390)]