2604980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{809}}^1$

素因数の和:848

約数の個数: 48

約数和(自身を含む): 6531840

約数和(自身を除く): 3926860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 809, 1610, 1618, 3220, 3236, 4045, 5663, 8090, 11326, 16180, 18607, 22652, 28315, 37214, 56630, 74428, 93035, 113260, 130249, 186070, 260498, 372140, 520996, 651245, 1302490, 2604980]

約数ペア:

[(1, 2604980), (2, 1302490), (4, 651245), (5, 520996), (7, 372140), (10, 260498), (14, 186070), (20, 130249), (23, 113260), (28, 93035), (35, 74428), (46, 56630), (70, 37214), (92, 28315), (115, 22652), (140, 18607), (161, 16180), (230, 11326), (322, 8090), (460, 5663), (644, 4045), (805, 3236), (809, 3220), (1610, 1618)]