78168440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{279173}}^1$

素因数の和:279191

約数の個数: 32

約数和(自身を含む): 201005280

約数和(自身を除く): 122836840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 279173, 558346, 1116692, 1395865, 1954211, 2233384, 2791730, 3908422, 5583460, 7816844, 9771055, 11166920, 15633688, 19542110, 39084220, 78168440]

約数ペア:

[(1, 78168440), (2, 39084220), (4, 19542110), (5, 15633688), (7, 11166920), (8, 9771055), (10, 7816844), (14, 5583460), (20, 3908422), (28, 2791730), (35, 2233384), (40, 1954211), (56, 1395865), (70, 1116692), (140, 558346), (280, 279173)]