28404252

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{311}}^1$

素因数の和:423

約数の個数: 72

約数和(自身を含む): 74954880

約数和(自身を除く): 46550628

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 59, 86, 118, 129, 172, 177, 236, 258, 311, 354, 387, 516, 531, 622, 708, 774, 933, 1062, 1244, 1548, 1866, 2124, 2537, 2799, 3732, 5074, 5598, 7611, 10148, 11196, 13373, 15222, 18349, 22833, 26746, 30444, 36698, 40119, 45666, 53492, 55047, 73396, 80238, 91332, 110094, 120357, 160476, 165141, 220188, 240714, 330282, 481428, 660564, 789007, 1578014, 2367021, 3156028, 4734042, 7101063, 9468084, 14202126, 28404252]

約数ペア:

[(1, 28404252), (2, 14202126), (3, 9468084), (4, 7101063), (6, 4734042), (9, 3156028), (12, 2367021), (18, 1578014), (36, 789007), (43, 660564), (59, 481428), (86, 330282), (118, 240714), (129, 220188), (172, 165141), (177, 160476), (236, 120357), (258, 110094), (311, 91332), (354, 80238), (387, 73396), (516, 55047), (531, 53492), (622, 45666), (708, 40119), (774, 36698), (933, 30444), (1062, 26746), (1244, 22833), (1548, 18349), (1866, 15222), (2124, 13373), (2537, 11196), (2799, 10148), (3732, 7611), (5074, 5598)]