208654855

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1801}}^1$

素因数の和:1899

約数の個数: 32

約数和(自身を含む): 280247040

約数和(自身を除く): 71592185

約数列:

[1, 5, 17, 29, 47, 85, 145, 235, 493, 799, 1363, 1801, 2465, 3995, 6815, 9005, 23171, 30617, 52229, 84647, 115855, 153085, 261145, 423235, 887893, 1438999, 2454763, 4439465, 7194995, 12273815, 41730971, 208654855]

約数ペア:

[(1, 208654855), (5, 41730971), (17, 12273815), (29, 7194995), (47, 4439465), (85, 2454763), (145, 1438999), (235, 887893), (493, 423235), (799, 261145), (1363, 153085), (1801, 115855), (2465, 84647), (3995, 52229), (6815, 30617), (9005, 23171)]