1978890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{65963}}^1$

素因数の和:65973

約数の個数: 16

約数和(自身を含む): 4749408

約数和(自身を除く): 2770518

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 65963, 131926, 197889, 329815, 395778, 659630, 989445, 1978890]

約数ペア:

[(1, 1978890), (2, 989445), (3, 659630), (5, 395778), (6, 329815), (10, 197889), (15, 131926), (30, 65963)]