2557065

素因数分解:

$3^1\times 5^1\times 7^4\times {\mathrm{71}}^1$

素因数の和:107

約数の個数: 40

約数和(自身を含む): 4840128

約数和(自身を除く): 2283063

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 71, 105, 147, 213, 245, 343, 355, 497, 735, 1029, 1065, 1491, 1715, 2401, 2485, 3479, 5145, 7203, 7455, 10437, 12005, 17395, 24353, 36015, 52185, 73059, 121765, 170471, 365295, 511413, 852355, 2557065]

約数ペア:

[(1, 2557065), (3, 852355), (5, 511413), (7, 365295), (15, 170471), (21, 121765), (35, 73059), (49, 52185), (71, 36015), (105, 24353), (147, 17395), (213, 12005), (245, 10437), (343, 7455), (355, 7203), (497, 5145), (735, 3479), (1029, 2485), (1065, 2401), (1491, 1715)]