28442994890

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1801}}^1\times {\mathrm{19991}}^1$

素因数の和:21878

約数の個数: 32

約数和(自身を含む): 51876840960

約数和(自身を除く): 23433846070

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 1801, 3602, 9005, 18010, 19991, 39982, 99955, 142279, 199910, 284558, 711395, 1422790, 1579289, 3158578, 7896445, 15792890, 36003791, 72007582, 180018955, 360037910, 2844299489, 5688598978, 14221497445, 28442994890]

約数ペア:

[(1, 28442994890), (2, 14221497445), (5, 5688598978), (10, 2844299489), (79, 360037910), (158, 180018955), (395, 72007582), (790, 36003791), (1801, 15792890), (3602, 7896445), (9005, 3158578), (18010, 1579289), (19991, 1422790), (39982, 711395), (99955, 284558), (142279, 199910)]