2185840

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{307}}^1$

素因数の和:409

約数の個数: 40

約数和(自身を含む): 5155920

約数和(自身を除く): 2970080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 307, 356, 445, 614, 712, 890, 1228, 1424, 1535, 1780, 2456, 3070, 3560, 4912, 6140, 7120, 12280, 24560, 27323, 54646, 109292, 136615, 218584, 273230, 437168, 546460, 1092920, 2185840]

約数ペア:

[(1, 2185840), (2, 1092920), (4, 546460), (5, 437168), (8, 273230), (10, 218584), (16, 136615), (20, 109292), (40, 54646), (80, 27323), (89, 24560), (178, 12280), (307, 7120), (356, 6140), (445, 4912), (614, 3560), (712, 3070), (890, 2456), (1228, 1780), (1424, 1535)]