1660740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{311}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 4717440

約数和(自身を除く): 3056700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 89, 178, 267, 311, 356, 445, 534, 622, 890, 933, 1068, 1244, 1335, 1555, 1780, 1866, 2670, 3110, 3732, 4665, 5340, 6220, 9330, 18660, 27679, 55358, 83037, 110716, 138395, 166074, 276790, 332148, 415185, 553580, 830370, 1660740]

約数ペア:

[(1, 1660740), (2, 830370), (3, 553580), (4, 415185), (5, 332148), (6, 276790), (10, 166074), (12, 138395), (15, 110716), (20, 83037), (30, 55358), (60, 27679), (89, 18660), (178, 9330), (267, 6220), (311, 5340), (356, 4665), (445, 3732), (534, 3110), (622, 2670), (890, 1866), (933, 1780), (1068, 1555), (1244, 1335)]