280821605

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{521}}^1$

素因数の和:701

約数の個数: 32

約数和(自身を含む): 363813120

約数和(自身を除く): 82991515

約数列:

[1, 5, 23, 43, 109, 115, 215, 521, 545, 989, 2507, 2605, 4687, 4945, 11983, 12535, 22403, 23435, 56789, 59915, 107801, 112015, 283945, 515269, 539005, 1306147, 2441927, 2576345, 6530735, 12209635, 56164321, 280821605]

約数ペア:

[(1, 280821605), (5, 56164321), (23, 12209635), (43, 6530735), (109, 2576345), (115, 2441927), (215, 1306147), (521, 539005), (545, 515269), (989, 283945), (2507, 112015), (2605, 107801), (4687, 59915), (4945, 56789), (11983, 23435), (12535, 22403)]