81970994

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{1999}}^1$

素因数の和:2138

約数の個数: 32

約数和(自身を含む): 146880000

約数和(自身を除く): 64909006

約数列:

[1, 2, 7, 14, 29, 58, 101, 202, 203, 406, 707, 1414, 1999, 2929, 3998, 5858, 13993, 20503, 27986, 41006, 57971, 115942, 201899, 403798, 405797, 811594, 1413293, 2826586, 5855071, 11710142, 40985497, 81970994]

約数ペア:

[(1, 81970994), (2, 40985497), (7, 11710142), (14, 5855071), (29, 2826586), (58, 1413293), (101, 811594), (202, 405797), (203, 403798), (406, 201899), (707, 115942), (1414, 57971), (1999, 41006), (2929, 27986), (3998, 20503), (5858, 13993)]