20820250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:208

約数の個数: 64

約数和(自身を含む): 43535232

約数和(自身を除く): 22714982

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 67, 110, 113, 125, 134, 226, 250, 275, 335, 550, 565, 670, 737, 1130, 1243, 1375, 1474, 1675, 2486, 2750, 2825, 3350, 3685, 5650, 6215, 7370, 7571, 8375, 12430, 14125, 15142, 16750, 18425, 28250, 31075, 36850, 37855, 62150, 75710, 83281, 92125, 155375, 166562, 184250, 189275, 310750, 378550, 416405, 832810, 946375, 1892750, 2082025, 4164050, 10410125, 20820250]

約数ペア:

[(1, 20820250), (2, 10410125), (5, 4164050), (10, 2082025), (11, 1892750), (22, 946375), (25, 832810), (50, 416405), (55, 378550), (67, 310750), (110, 189275), (113, 184250), (125, 166562), (134, 155375), (226, 92125), (250, 83281), (275, 75710), (335, 62150), (550, 37855), (565, 36850), (670, 31075), (737, 28250), (1130, 18425), (1243, 16750), (1375, 15142), (1474, 14125), (1675, 12430), (2486, 8375), (2750, 7571), (2825, 7370), (3350, 6215), (3685, 5650)]