1921980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{311}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 5451264

約数和(自身を除く): 3529284

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 103, 206, 309, 311, 412, 515, 618, 622, 933, 1030, 1236, 1244, 1545, 1555, 1866, 2060, 3090, 3110, 3732, 4665, 6180, 6220, 9330, 18660, 32033, 64066, 96099, 128132, 160165, 192198, 320330, 384396, 480495, 640660, 960990, 1921980]

約数ペア:

[(1, 1921980), (2, 960990), (3, 640660), (4, 480495), (5, 384396), (6, 320330), (10, 192198), (12, 160165), (15, 128132), (20, 96099), (30, 64066), (60, 32033), (103, 18660), (206, 9330), (309, 6220), (311, 6180), (412, 4665), (515, 3732), (618, 3110), (622, 3090), (933, 2060), (1030, 1866), (1236, 1555), (1244, 1545)]