211971890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{347}}^1$

素因数の和:531

約数の個数: 64

約数和(自身を含む): 426553344

約数和(自身を除く): 214581454

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 127, 130, 185, 254, 347, 370, 481, 635, 694, 962, 1270, 1651, 1735, 2405, 3302, 3470, 4511, 4699, 4810, 8255, 9022, 9398, 12839, 16510, 22555, 23495, 25678, 44069, 45110, 46990, 61087, 64195, 88138, 122174, 128390, 166907, 220345, 305435, 333814, 440690, 572897, 610870, 834535, 1145794, 1630553, 1669070, 2864485, 3261106, 5728970, 8152765, 16305530, 21197189, 42394378, 105985945, 211971890]

約数ペア:

[(1, 211971890), (2, 105985945), (5, 42394378), (10, 21197189), (13, 16305530), (26, 8152765), (37, 5728970), (65, 3261106), (74, 2864485), (127, 1669070), (130, 1630553), (185, 1145794), (254, 834535), (347, 610870), (370, 572897), (481, 440690), (635, 333814), (694, 305435), (962, 220345), (1270, 166907), (1651, 128390), (1735, 122174), (2405, 88138), (3302, 64195), (3470, 61087), (4511, 46990), (4699, 45110), (4810, 44069), (8255, 25678), (9022, 23495), (9398, 22555), (12839, 16510)]