31545620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{397}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 69204240

約数和(自身を除く): 37658620

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 137, 145, 274, 290, 397, 548, 580, 685, 794, 1370, 1588, 1985, 2740, 3970, 3973, 7940, 7946, 11513, 15892, 19865, 23026, 39730, 46052, 54389, 57565, 79460, 108778, 115130, 217556, 230260, 271945, 543890, 1087780, 1577281, 3154562, 6309124, 7886405, 15772810, 31545620]

約数ペア:

[(1, 31545620), (2, 15772810), (4, 7886405), (5, 6309124), (10, 3154562), (20, 1577281), (29, 1087780), (58, 543890), (116, 271945), (137, 230260), (145, 217556), (274, 115130), (290, 108778), (397, 79460), (548, 57565), (580, 54389), (685, 46052), (794, 39730), (1370, 23026), (1588, 19865), (1985, 15892), (2740, 11513), (3970, 7946), (3973, 7940)]