1984580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{449}}^1$

素因数の和:488

約数の個数: 48

約数和(自身を含む): 4762800

約数和(自身を除く): 2778220

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 449, 884, 898, 1105, 1796, 2210, 2245, 4420, 4490, 5837, 7633, 8980, 11674, 15266, 23348, 29185, 30532, 38165, 58370, 76330, 99229, 116740, 152660, 198458, 396916, 496145, 992290, 1984580]

約数ペア:

[(1, 1984580), (2, 992290), (4, 496145), (5, 396916), (10, 198458), (13, 152660), (17, 116740), (20, 99229), (26, 76330), (34, 58370), (52, 38165), (65, 30532), (68, 29185), (85, 23348), (130, 15266), (170, 11674), (221, 8980), (260, 7633), (340, 5837), (442, 4490), (449, 4420), (884, 2245), (898, 2210), (1105, 1796)]