639897744

素因数分解:

$2^4\times 3^1\times {\mathrm{13331203}}^1$

素因数の和:13331214

約数の個数: 20

約数和(自身を含む): 1653069296

約数和(自身を除く): 1013171552

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 13331203, 26662406, 39993609, 53324812, 79987218, 106649624, 159974436, 213299248, 319948872, 639897744]

約数ペア:

[(1, 639897744), (2, 319948872), (3, 213299248), (4, 159974436), (6, 106649624), (8, 79987218), (12, 53324812), (16, 39993609), (24, 26662406), (48, 13331203)]