639390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{21313}}^1$

素因数の和:21323

約数の個数: 16

約数和(自身を含む): 1534608

約数和(自身を除く): 895218

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 21313, 42626, 63939, 106565, 127878, 213130, 319695, 639390]

約数ペア:

[(1, 639390), (2, 319695), (3, 213130), (5, 127878), (6, 106565), (10, 63939), (15, 42626), (30, 21313)]