1815780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{571}}^1$

素因数の和:636

約数の個数: 48

約数和(自身を含む): 5189184

約数和(自身を除く): 3373404

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 106, 159, 212, 265, 318, 530, 571, 636, 795, 1060, 1142, 1590, 1713, 2284, 2855, 3180, 3426, 5710, 6852, 8565, 11420, 17130, 30263, 34260, 60526, 90789, 121052, 151315, 181578, 302630, 363156, 453945, 605260, 907890, 1815780]

約数ペア:

[(1, 1815780), (2, 907890), (3, 605260), (4, 453945), (5, 363156), (6, 302630), (10, 181578), (12, 151315), (15, 121052), (20, 90789), (30, 60526), (53, 34260), (60, 30263), (106, 17130), (159, 11420), (212, 8565), (265, 6852), (318, 5710), (530, 3426), (571, 3180), (636, 2855), (795, 2284), (1060, 1713), (1142, 1590)]