80788120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{288529}}^1$

素因数の和:288547

約数の個数: 32

約数和(自身を含む): 207741600

約数和(自身を除く): 126953480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 288529, 577058, 1154116, 1442645, 2019703, 2308232, 2885290, 4039406, 5770580, 8078812, 10098515, 11541160, 16157624, 20197030, 40394060, 80788120]

約数ペア:

[(1, 80788120), (2, 40394060), (4, 20197030), (5, 16157624), (7, 11541160), (8, 10098515), (10, 8078812), (14, 5770580), (20, 4039406), (28, 2885290), (35, 2308232), (40, 2019703), (56, 1442645), (70, 1154116), (140, 577058), (280, 288529)]