80402800

素因数分解:

$2^4\times 5^2\times {\mathrm{201007}}^1$

素因数の和:201025

約数の個数: 30

約数和(自身を含む): 193168688

約数和(自身を除く): 112765888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 201007, 402014, 804028, 1005035, 1608056, 2010070, 3216112, 4020140, 5025175, 8040280, 10050350, 16080560, 20100700, 40201400, 80402800]

約数ペア:

[(1, 80402800), (2, 40201400), (4, 20100700), (5, 16080560), (8, 10050350), (10, 8040280), (16, 5025175), (20, 4020140), (25, 3216112), (40, 2010070), (50, 1608056), (80, 1005035), (100, 804028), (200, 402014), (400, 201007)]