989406908

素因数分解:

$2^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{271}}^1\times {\mathrm{1291}}^1$

素因数の和:1674

約数の個数: 48

約数和(自身を含む): 2007333888

約数和(自身を除く): 1017926980

約数列:

[1, 2, 4, 7, 14, 28, 101, 202, 271, 404, 542, 707, 1084, 1291, 1414, 1897, 2582, 2828, 3794, 5164, 7588, 9037, 18074, 27371, 36148, 54742, 109484, 130391, 191597, 260782, 349861, 383194, 521564, 699722, 766388, 912737, 1399444, 1825474, 2449027, 3650948, 4898054, 9796108, 35335961, 70671922, 141343844, 247351727, 494703454, 989406908]

約数ペア:

[(1, 989406908), (2, 494703454), (4, 247351727), (7, 141343844), (14, 70671922), (28, 35335961), (101, 9796108), (202, 4898054), (271, 3650948), (404, 2449027), (542, 1825474), (707, 1399444), (1084, 912737), (1291, 766388), (1414, 699722), (1897, 521564), (2582, 383194), (2828, 349861), (3794, 260782), (5164, 191597), (7588, 130391), (9037, 109484), (18074, 54742), (27371, 36148)]