7128940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3917}}^1$

素因数の和:3946

約数の個数: 48

約数和(自身を含む): 18430272

約数和(自身を除く): 11301332

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 3917, 7834, 15668, 19585, 27419, 39170, 50921, 54838, 78340, 101842, 109676, 137095, 203684, 254605, 274190, 356447, 509210, 548380, 712894, 1018420, 1425788, 1782235, 3564470, 7128940]

約数ペア:

[(1, 7128940), (2, 3564470), (4, 1782235), (5, 1425788), (7, 1018420), (10, 712894), (13, 548380), (14, 509210), (20, 356447), (26, 274190), (28, 254605), (35, 203684), (52, 137095), (65, 109676), (70, 101842), (91, 78340), (130, 54838), (140, 50921), (182, 39170), (260, 27419), (364, 19585), (455, 15668), (910, 7834), (1820, 3917)]