68907440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{123049}}^1$

素因数の和:123069

約数の個数: 40

約数和(自身を含む): 183098400

約数和(自身を除く): 114190960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 123049, 246098, 492196, 615245, 861343, 984392, 1230490, 1722686, 1968784, 2460980, 3445372, 4306715, 4921960, 6890744, 8613430, 9843920, 13781488, 17226860, 34453720, 68907440]

約数ペア:

[(1, 68907440), (2, 34453720), (4, 17226860), (5, 13781488), (7, 9843920), (8, 8613430), (10, 6890744), (14, 4921960), (16, 4306715), (20, 3445372), (28, 2460980), (35, 1968784), (40, 1722686), (56, 1230490), (70, 984392), (80, 861343), (112, 615245), (140, 492196), (280, 246098), (560, 123049)]