3280240

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{313}}^1$

素因数の和:457

約数の個数: 40

約数和(自身を含む): 7709328

約数和(自身を除く): 4429088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 313, 524, 626, 655, 1048, 1252, 1310, 1565, 2096, 2504, 2620, 3130, 5008, 5240, 6260, 10480, 12520, 25040, 41003, 82006, 164012, 205015, 328024, 410030, 656048, 820060, 1640120, 3280240]

約数ペア:

[(1, 3280240), (2, 1640120), (4, 820060), (5, 656048), (8, 410030), (10, 328024), (16, 205015), (20, 164012), (40, 82006), (80, 41003), (131, 25040), (262, 12520), (313, 10480), (524, 6260), (626, 5240), (655, 5008), (1048, 3130), (1252, 2620), (1310, 2504), (1565, 2096)]