291233480

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{102547}}^1$

素因数の和:102629

約数の個数: 32

約数和(自身を含む): 664511040

約数和(自身を除く): 373277560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 102547, 205094, 410188, 512735, 820376, 1025470, 2050940, 4101880, 7280837, 14561674, 29123348, 36404185, 58246696, 72808370, 145616740, 291233480]

約数ペア:

[(1, 291233480), (2, 145616740), (4, 72808370), (5, 58246696), (8, 36404185), (10, 29123348), (20, 14561674), (40, 7280837), (71, 4101880), (142, 2050940), (284, 1025470), (355, 820376), (568, 512735), (710, 410188), (1420, 205094), (2840, 102547)]