87838940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{461}}^1\times {\mathrm{1361}}^1$

素因数の和:1838

約数の個数: 48

約数和(自身を含む): 211425984

約数和(自身を除く): 123587044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 461, 922, 1361, 1844, 2305, 2722, 3227, 4610, 5444, 6454, 6805, 9220, 9527, 12908, 13610, 16135, 19054, 27220, 32270, 38108, 47635, 64540, 95270, 190540, 627421, 1254842, 2509684, 3137105, 4391947, 6274210, 8783894, 12548420, 17567788, 21959735, 43919470, 87838940]

約数ペア:

[(1, 87838940), (2, 43919470), (4, 21959735), (5, 17567788), (7, 12548420), (10, 8783894), (14, 6274210), (20, 4391947), (28, 3137105), (35, 2509684), (70, 1254842), (140, 627421), (461, 190540), (922, 95270), (1361, 64540), (1844, 47635), (2305, 38108), (2722, 32270), (3227, 27220), (4610, 19054), (5444, 16135), (6454, 13610), (6805, 12908), (9220, 9527)]