28431396

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{439}}^1$

素因数の和:713

約数の個数: 72

約数和(自身を含む): 82642560

約数和(自身を除く): 54211164

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 257, 439, 514, 771, 878, 1028, 1317, 1542, 1756, 1799, 2313, 2634, 3073, 3084, 3598, 3951, 4626, 5268, 5397, 6146, 7196, 7902, 9219, 9252, 10794, 12292, 15804, 16191, 18438, 21588, 27657, 32382, 36876, 55314, 64764, 110628, 112823, 225646, 338469, 451292, 676938, 789761, 1015407, 1353876, 1579522, 2030814, 2369283, 3159044, 4061628, 4738566, 7107849, 9477132, 14215698, 28431396]

約数ペア:

[(1, 28431396), (2, 14215698), (3, 9477132), (4, 7107849), (6, 4738566), (7, 4061628), (9, 3159044), (12, 2369283), (14, 2030814), (18, 1579522), (21, 1353876), (28, 1015407), (36, 789761), (42, 676938), (63, 451292), (84, 338469), (126, 225646), (252, 112823), (257, 110628), (439, 64764), (514, 55314), (771, 36876), (878, 32382), (1028, 27657), (1317, 21588), (1542, 18438), (1756, 16191), (1799, 15804), (2313, 12292), (2634, 10794), (3073, 9252), (3084, 9219), (3598, 7902), (3951, 7196), (4626, 6146), (5268, 5397)]