306739880

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{108007}}^1$

素因数の和:108089

約数の個数: 32

約数和(自身を含む): 699891840

約数和(自身を除く): 393151960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 108007, 216014, 432028, 540035, 864056, 1080070, 2160140, 4320280, 7668497, 15336994, 30673988, 38342485, 61347976, 76684970, 153369940, 306739880]

約数ペア:

[(1, 306739880), (2, 153369940), (4, 76684970), (5, 61347976), (8, 38342485), (10, 30673988), (20, 15336994), (40, 7668497), (71, 4320280), (142, 2160140), (284, 1080070), (355, 864056), (568, 540035), (710, 432028), (1420, 216014), (2840, 108007)]