209215780

素因数分解:

$2^2\times 5^1\times {\mathrm{1709}}^1\times {\mathrm{6121}}^1$

素因数の和:7839

約数の個数: 24

約数和(自身を含む): 439682040

約数和(自身を除く): 230466260

約数列:

[1, 2, 4, 5, 10, 20, 1709, 3418, 6121, 6836, 8545, 12242, 17090, 24484, 30605, 34180, 61210, 122420, 10460789, 20921578, 41843156, 52303945, 104607890, 209215780]

約数ペア:

[(1, 209215780), (2, 104607890), (4, 52303945), (5, 41843156), (10, 20921578), (20, 10460789), (1709, 122420), (3418, 61210), (6121, 34180), (6836, 30605), (8545, 24484), (12242, 17090)]