89353840

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{10247}}^1$

素因数の和:10369

約数の個数: 40

約数和(自身を含む): 209674080

約数和(自身を除く): 120320240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 10247, 20494, 40988, 51235, 81976, 102470, 163952, 204940, 409880, 819760, 1116923, 2233846, 4467692, 5584615, 8935384, 11169230, 17870768, 22338460, 44676920, 89353840]

約数ペア:

[(1, 89353840), (2, 44676920), (4, 22338460), (5, 17870768), (8, 11169230), (10, 8935384), (16, 5584615), (20, 4467692), (40, 2233846), (80, 1116923), (109, 819760), (218, 409880), (436, 204940), (545, 163952), (872, 102470), (1090, 81976), (1744, 51235), (2180, 40988), (4360, 20494), (8720, 10247)]