71496520

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{3209}}^1$

素因数の和:3777

約数の個数: 32

約数和(自身を含む): 161206200

約数和(自身を除く): 89709680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 1114, 2228, 2785, 3209, 4456, 5570, 6418, 11140, 12836, 16045, 22280, 25672, 32090, 64180, 128360, 1787413, 3574826, 7149652, 8937065, 14299304, 17874130, 35748260, 71496520]

約数ペア:

[(1, 71496520), (2, 35748260), (4, 17874130), (5, 14299304), (8, 8937065), (10, 7149652), (20, 3574826), (40, 1787413), (557, 128360), (1114, 64180), (2228, 32090), (2785, 25672), (3209, 22280), (4456, 16045), (5570, 12836), (6418, 11140)]