19996560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{27773}}^1$

素因数の和:27792

約数の個数: 60

約数和(自身を含む): 67157532

約数和(自身を除く): 47160972

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 27773, 55546, 83319, 111092, 138865, 166638, 222184, 249957, 277730, 333276, 416595, 444368, 499914, 555460, 666552, 833190, 999828, 1110920, 1249785, 1333104, 1666380, 1999656, 2221840, 2499570, 3332760, 3999312, 4999140, 6665520, 9998280, 19996560]

約数ペア:

[(1, 19996560), (2, 9998280), (3, 6665520), (4, 4999140), (5, 3999312), (6, 3332760), (8, 2499570), (9, 2221840), (10, 1999656), (12, 1666380), (15, 1333104), (16, 1249785), (18, 1110920), (20, 999828), (24, 833190), (30, 666552), (36, 555460), (40, 499914), (45, 444368), (48, 416595), (60, 333276), (72, 277730), (80, 249957), (90, 222184), (120, 166638), (144, 138865), (180, 111092), (240, 83319), (360, 55546), (720, 27773)]