756992020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{4639}}^1$

素因数の和:4888

約数の個数: 48

約数和(自身を含む): 1636992000

約数和(自身を除く): 879999980

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 199, 205, 398, 410, 796, 820, 995, 1990, 3980, 4639, 8159, 9278, 16318, 18556, 23195, 32636, 40795, 46390, 81590, 92780, 163180, 190199, 380398, 760796, 923161, 950995, 1846322, 1901990, 3692644, 3803980, 4615805, 9231610, 18463220, 37849601, 75699202, 151398404, 189248005, 378496010, 756992020]

約数ペア:

[(1, 756992020), (2, 378496010), (4, 189248005), (5, 151398404), (10, 75699202), (20, 37849601), (41, 18463220), (82, 9231610), (164, 4615805), (199, 3803980), (205, 3692644), (398, 1901990), (410, 1846322), (796, 950995), (820, 923161), (995, 760796), (1990, 380398), (3980, 190199), (4639, 163180), (8159, 92780), (9278, 81590), (16318, 46390), (18556, 40795), (23195, 32636)]