20785590

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{32993}}^1$

素因数の和:33013

約数の個数: 48

約数和(自身を含む): 61764768

約数和(自身を除く): 40979178

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 32993, 65986, 98979, 164965, 197958, 230951, 296937, 329930, 461902, 494895, 593874, 692853, 989790, 1154755, 1385706, 1484685, 2078559, 2309510, 2969370, 3464265, 4157118, 6928530, 10392795, 20785590]

約数ペア:

[(1, 20785590), (2, 10392795), (3, 6928530), (5, 4157118), (6, 3464265), (7, 2969370), (9, 2309510), (10, 2078559), (14, 1484685), (15, 1385706), (18, 1154755), (21, 989790), (30, 692853), (35, 593874), (42, 494895), (45, 461902), (63, 329930), (70, 296937), (90, 230951), (105, 197958), (126, 164965), (210, 98979), (315, 65986), (630, 32993)]