64700380

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{3271}}^1$

素因数の和:3346

約数の個数: 48

約数和(自身を含む): 145119744

約数和(自身を除く): 80419364

約数列:

[1, 2, 4, 5, 10, 20, 23, 43, 46, 86, 92, 115, 172, 215, 230, 430, 460, 860, 989, 1978, 3271, 3956, 4945, 6542, 9890, 13084, 16355, 19780, 32710, 65420, 75233, 140653, 150466, 281306, 300932, 376165, 562612, 703265, 752330, 1406530, 1504660, 2813060, 3235019, 6470038, 12940076, 16175095, 32350190, 64700380]

約数ペア:

[(1, 64700380), (2, 32350190), (4, 16175095), (5, 12940076), (10, 6470038), (20, 3235019), (23, 2813060), (43, 1504660), (46, 1406530), (86, 752330), (92, 703265), (115, 562612), (172, 376165), (215, 300932), (230, 281306), (430, 150466), (460, 140653), (860, 75233), (989, 65420), (1978, 32710), (3271, 19780), (3956, 16355), (4945, 13084), (6542, 9890)]