81905520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{341273}}^1$

素因数の和:341289

約数の個数: 40

約数和(自身を含む): 253907856

約数和(自身を除く): 172002336

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 341273, 682546, 1023819, 1365092, 1706365, 2047638, 2730184, 3412730, 4095276, 5119095, 5460368, 6825460, 8190552, 10238190, 13650920, 16381104, 20476380, 27301840, 40952760, 81905520]

約数ペア:

[(1, 81905520), (2, 40952760), (3, 27301840), (4, 20476380), (5, 16381104), (6, 13650920), (8, 10238190), (10, 8190552), (12, 6825460), (15, 5460368), (16, 5119095), (20, 4095276), (24, 3412730), (30, 2730184), (40, 2047638), (48, 1706365), (60, 1365092), (80, 1023819), (120, 682546), (240, 341273)]