123653320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{441619}}^1$

素因数の和:441637

約数の個数: 32

約数和(自身を含む): 317966400

約数和(自身を除く): 194313080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 441619, 883238, 1766476, 2208095, 3091333, 3532952, 4416190, 6182666, 8832380, 12365332, 15456665, 17664760, 24730664, 30913330, 61826660, 123653320]

約数ペア:

[(1, 123653320), (2, 61826660), (4, 30913330), (5, 24730664), (7, 17664760), (8, 15456665), (10, 12365332), (14, 8832380), (20, 6182666), (28, 4416190), (35, 3532952), (40, 3091333), (56, 2208095), (70, 1766476), (140, 883238), (280, 441619)]