79971160

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{3119}}^1$

素因数の和:3771

約数の個数: 32

約数和(自身を含む): 180273600

約数和(自身を除く): 100302440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 2564, 3119, 3205, 5128, 6238, 6410, 12476, 12820, 15595, 24952, 25640, 31190, 62380, 124760, 1999279, 3998558, 7997116, 9996395, 15994232, 19992790, 39985580, 79971160]

約数ペア:

[(1, 79971160), (2, 39985580), (4, 19992790), (5, 15994232), (8, 9996395), (10, 7997116), (20, 3998558), (40, 1999279), (641, 124760), (1282, 62380), (2564, 31190), (3119, 25640), (3205, 24952), (5128, 15595), (6238, 12820), (6410, 12476)]