644256430

素因数分解:

$2^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{237733}}^1$

素因数の和:238011

約数の個数: 16

約数和(自身を含む): 1163945664

約数和(自身を除く): 519689234

約数列:

[1, 2, 5, 10, 271, 542, 1355, 2710, 237733, 475466, 1188665, 2377330, 64425643, 128851286, 322128215, 644256430]

約数ペア:

[(1, 644256430), (2, 322128215), (5, 128851286), (10, 64425643), (271, 2377330), (542, 1188665), (1355, 475466), (2710, 237733)]