2740120

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1123}}^1$

素因数の和:1195

約数の個数: 32

約数和(自身を含む): 6271920

約数和(自身を除く): 3531800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1123, 1220, 2246, 2440, 4492, 5615, 8984, 11230, 22460, 44920, 68503, 137006, 274012, 342515, 548024, 685030, 1370060, 2740120]

約数ペア:

[(1, 2740120), (2, 1370060), (4, 685030), (5, 548024), (8, 342515), (10, 274012), (20, 137006), (40, 68503), (61, 44920), (122, 22460), (244, 11230), (305, 8984), (488, 5615), (610, 4492), (1123, 2440), (1220, 2246)]