40539280

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4649}}^1$

素因数の和:4771

約数の個数: 40

約数和(自身を含む): 95139000

約数和(自身を除く): 54599720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 4649, 8720, 9298, 18596, 23245, 37192, 46490, 74384, 92980, 185960, 371920, 506741, 1013482, 2026964, 2533705, 4053928, 5067410, 8107856, 10134820, 20269640, 40539280]

約数ペア:

[(1, 40539280), (2, 20269640), (4, 10134820), (5, 8107856), (8, 5067410), (10, 4053928), (16, 2533705), (20, 2026964), (40, 1013482), (80, 506741), (109, 371920), (218, 185960), (436, 92980), (545, 74384), (872, 46490), (1090, 37192), (1744, 23245), (2180, 18596), (4360, 9298), (4649, 8720)]