123452840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{440903}}^1$

素因数の和:440921

約数の個数: 32

約数和(自身を含む): 317450880

約数和(自身を除く): 193998040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 440903, 881806, 1763612, 2204515, 3086321, 3527224, 4409030, 6172642, 8818060, 12345284, 15431605, 17636120, 24690568, 30863210, 61726420, 123452840]

約数ペア:

[(1, 123452840), (2, 61726420), (4, 30863210), (5, 24690568), (7, 17636120), (8, 15431605), (10, 12345284), (14, 8818060), (20, 6172642), (28, 4409030), (35, 3527224), (40, 3086321), (56, 2204515), (70, 1763612), (140, 881806), (280, 440903)]