214979540

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{1321}}^1$

素因数の和:1512

約数の個数: 48

約数和(自身を含む): 461959680

約数和(自身を除く): 246980140

約数列:

[1, 2, 4, 5, 10, 20, 79, 103, 158, 206, 316, 395, 412, 515, 790, 1030, 1321, 1580, 2060, 2642, 5284, 6605, 8137, 13210, 16274, 26420, 32548, 40685, 81370, 104359, 136063, 162740, 208718, 272126, 417436, 521795, 544252, 680315, 1043590, 1360630, 2087180, 2721260, 10748977, 21497954, 42995908, 53744885, 107489770, 214979540]

約数ペア:

[(1, 214979540), (2, 107489770), (4, 53744885), (5, 42995908), (10, 21497954), (20, 10748977), (79, 2721260), (103, 2087180), (158, 1360630), (206, 1043590), (316, 680315), (395, 544252), (412, 521795), (515, 417436), (790, 272126), (1030, 208718), (1321, 162740), (1580, 136063), (2060, 104359), (2642, 81370), (5284, 40685), (6605, 32548), (8137, 26420), (13210, 16274)]