28892380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{11939}}^1$

素因数の和:11970

約数の個数: 36

約数和(自身を含む): 66696840

約数和(自身を除く): 37804460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 11939, 23878, 47756, 59695, 119390, 131329, 238780, 262658, 525316, 656645, 1313290, 1444619, 2626580, 2889238, 5778476, 7223095, 14446190, 28892380]

約数ペア:

[(1, 28892380), (2, 14446190), (4, 7223095), (5, 5778476), (10, 2889238), (11, 2626580), (20, 1444619), (22, 1313290), (44, 656645), (55, 525316), (110, 262658), (121, 238780), (220, 131329), (242, 119390), (484, 59695), (605, 47756), (1210, 23878), (2420, 11939)]