420901905

素因数分解:

$3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{188323}}^1$

素因数の和:188480

約数の個数: 16

約数和(自身を含む): 677966400

約数和(自身を除く): 257064495

約数列:

[1, 3, 5, 15, 149, 447, 745, 2235, 188323, 564969, 941615, 2824845, 28060127, 84180381, 140300635, 420901905]

約数ペア:

[(1, 420901905), (3, 140300635), (5, 84180381), (15, 28060127), (149, 2824845), (447, 941615), (745, 564969), (2235, 188323)]