219491320

素因数分解:

$2^3\times 5^1\times {\mathrm{461}}^1\times {\mathrm{11903}}^1$

素因数の和:12375

約数の個数: 32

約数和(自身を含む): 494968320

約数和(自身を除く): 275477000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 461, 922, 1844, 2305, 3688, 4610, 9220, 11903, 18440, 23806, 47612, 59515, 95224, 119030, 238060, 476120, 5487283, 10974566, 21949132, 27436415, 43898264, 54872830, 109745660, 219491320]

約数ペア:

[(1, 219491320), (2, 109745660), (4, 54872830), (5, 43898264), (8, 27436415), (10, 21949132), (20, 10974566), (40, 5487283), (461, 476120), (922, 238060), (1844, 119030), (2305, 95224), (3688, 59515), (4610, 47612), (9220, 23806), (11903, 18440)]