400044040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{3457}}^1$

素因数の和:3742

約数の個数: 64

約数和(自身を含む): 985944960

約数和(自身を除く): 585900920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 263, 440, 526, 1052, 1315, 2104, 2630, 2893, 3457, 5260, 5786, 6914, 10520, 11572, 13828, 14465, 17285, 23144, 27656, 28930, 34570, 38027, 57860, 69140, 76054, 115720, 138280, 152108, 190135, 304216, 380270, 760540, 909191, 1521080, 1818382, 3636764, 4545955, 7273528, 9091910, 10001101, 18183820, 20002202, 36367640, 40004404, 50005505, 80008808, 100011010, 200022020, 400044040]

約数ペア:

[(1, 400044040), (2, 200022020), (4, 100011010), (5, 80008808), (8, 50005505), (10, 40004404), (11, 36367640), (20, 20002202), (22, 18183820), (40, 10001101), (44, 9091910), (55, 7273528), (88, 4545955), (110, 3636764), (220, 1818382), (263, 1521080), (440, 909191), (526, 760540), (1052, 380270), (1315, 304216), (2104, 190135), (2630, 152108), (2893, 138280), (3457, 115720), (5260, 76054), (5786, 69140), (6914, 57860), (10520, 38027), (11572, 34570), (13828, 28930), (14465, 27656), (17285, 23144)]