31969880

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{11257}}^1$

素因数の和:11339

約数の個数: 32

約数和(自身を含む): 72951840

約数和(自身を除く): 40981960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 11257, 22514, 45028, 56285, 90056, 112570, 225140, 450280, 799247, 1598494, 3196988, 3996235, 6393976, 7992470, 15984940, 31969880]

約数ペア:

[(1, 31969880), (2, 15984940), (4, 7992470), (5, 6393976), (8, 3996235), (10, 3196988), (20, 1598494), (40, 799247), (71, 450280), (142, 225140), (284, 112570), (355, 90056), (568, 56285), (710, 45028), (1420, 22514), (2840, 11257)]