1309240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{461}}^1$

素因数の和:543

約数の個数: 32

約数和(自身を含む): 2993760

約数和(自身を除く): 1684520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 461, 568, 710, 922, 1420, 1844, 2305, 2840, 3688, 4610, 9220, 18440, 32731, 65462, 130924, 163655, 261848, 327310, 654620, 1309240]

約数ペア:

[(1, 1309240), (2, 654620), (4, 327310), (5, 261848), (8, 163655), (10, 130924), (20, 65462), (40, 32731), (71, 18440), (142, 9220), (284, 4610), (355, 3688), (461, 2840), (568, 2305), (710, 1844), (922, 1420)]