201808025

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{59}}^1\times {\mathrm{379}}^1$

素因数の和:486

約数の個数: 36

約数和(自身を含む): 269290800

約数和(自身を除く): 67482775

約数列:

[1, 5, 19, 25, 59, 95, 295, 361, 379, 475, 1121, 1475, 1805, 1895, 5605, 7201, 9025, 9475, 21299, 22361, 28025, 36005, 106495, 111805, 136819, 180025, 424859, 532475, 559025, 684095, 2124295, 3420475, 8072321, 10621475, 40361605, 201808025]

約数ペア:

[(1, 201808025), (5, 40361605), (19, 10621475), (25, 8072321), (59, 3420475), (95, 2124295), (295, 684095), (361, 559025), (379, 532475), (475, 424859), (1121, 180025), (1475, 136819), (1805, 111805), (1895, 106495), (5605, 36005), (7201, 28025), (9025, 22361), (9475, 21299)]