214920860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19937}}^1$

素因数の和:19971

約数の個数: 72

約数和(自身を含む): 572778864

約数和(自身を除く): 357858004

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 10780, 19937, 39874, 79748, 99685, 139559, 199370, 219307, 279118, 398740, 438614, 558236, 697795, 877228, 976913, 1096535, 1395590, 1535149, 1953826, 2193070, 2791180, 3070298, 3907652, 4386140, 4884565, 6140596, 7675745, 9769130, 10746043, 15351490, 19538260, 21492086, 30702980, 42984172, 53730215, 107460430, 214920860]

約数ペア:

[(1, 214920860), (2, 107460430), (4, 53730215), (5, 42984172), (7, 30702980), (10, 21492086), (11, 19538260), (14, 15351490), (20, 10746043), (22, 9769130), (28, 7675745), (35, 6140596), (44, 4884565), (49, 4386140), (55, 3907652), (70, 3070298), (77, 2791180), (98, 2193070), (110, 1953826), (140, 1535149), (154, 1395590), (196, 1096535), (220, 976913), (245, 877228), (308, 697795), (385, 558236), (490, 438614), (539, 398740), (770, 279118), (980, 219307), (1078, 199370), (1540, 139559), (2156, 99685), (2695, 79748), (5390, 39874), (10780, 19937)]